To apply the filter() function to a data frame, you need to specify the data frame as the first argument of the function, followed by the conditions that you want to filter on.
How to write the filter()?case, you can use the following code to filter the data frame for chocolate bars that contain at least 75% cocoa and have a rating of at least 3.9 points:
filter(data_frame, Cocoa.Percent >= 75, Rating >= 3.9)
Replace data_frame with the name of your data frame, and the code should filter the data frame as desired. It is also possible to use the & operator instead of , to combine the conditions in the filter() function, like this:
filter(data_frame, Cocoa.Percent >= 75 & Rating >= 3.9)
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3. Use either summation notation or instruction count method to measure time complexity for the following function. void printPairs(int arr[], int n){ for(int i=0; i
Summation Notation: T(n) = Σ(i=0 to n-1)Σ(j=i+1 to n-1)1 = (n-1)(n-2)/2 = O(n^2)
Instruction Count Method: T(n) = 3n + 2(n-1)(n-2)/2 = (3n + n^2 - 3n -2)/2 = O(n^2)
What is time complexity ?
Time complexity is the measure of how long it takes for an algorithm or program to execute and complete its task. It is typically expressed in terms of the amount of time required to complete a program as a function of the size of the input. In other words, the time complexity of an algorithm is the amount of time it takes to run a certain number of instructions for a given input size. Time complexity can help determine the efficiency of an algorithm and can also be used to compare different algorithms for the same problem.
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Which of these is associated with a specific file and provides a way for the program to work with that file?a. Filenameb. Extensionc. File objectd. File variable
Answer:
C................................
Consider a Shortest Job First (SJF) CPU scheduler, with the following process workload:
Process Arrival Time CPU Burst
P1 t 5
P2 t+6 7
P3 t+10 5
P4 t+2 3
P5 t+8 9
P6 t+4 1
Assume that the CPU is free and no other processes exist in the ready queue when P1 enters the ready queue at time t. Determine the schedule of process execution and compute the wait times for each of the above six processes. Which of the following is a TRUE statement about the average wait time and the maximum wait time for the six processes?
A. The average wait time is between 5.0 and 5.5 time units; the maximum wait time is between 11 and 12 time units.
B. The average wait time is between 3.5 and 4.0 time units; the maximum wait time is between 11 and 12 time units.
C. The average wait time is between 4.0 and 4.5 time units; the maximum wait time is between 12 and 13 time units.
D. The average wait time is between 4.0 and 4.5 time units; the maximum wait time is between 11 and 12 time units.
Answer:
Shortest Job First (SJF) CPU scheduler:- Process Arrival Time CPU Burst P1 t 5 P2 t+6 7 P3 t+10 5 P4 t+2 3 P5 t+8 9 P6 t+4 1 Since we have to deal with the Waiting time therefore we will assume t=0, so that to make our calculations easier.
1. Machine learning is
A) Program building technology, which includes training on Examples (with or without a teacher)
B) construction of the hardware architecture of modern computers c) implementation of multithreaded computing algorithms
Answer: A
Machine learning is a form of AI which a machine is subjected on a dataset to learn from the data, often to generate new media.
Please explain in full detail what is Virtual Machine Management?
Answer:
Virtual machine management refers to the process of creating, configuring, and maintaining virtual machines (VMs) in a virtualized environment. Virtual machines are software-based simulations of physical computers that run on a host machine and provide the same functionality as a physical computer.
Virtual machine management involves tasks such as setting up and configuring the virtualization software, creating and installing virtual machines, assigning resources (such as CPU, memory, and storage) to the virtual machines, and monitoring the performance of the virtual machines. It also involves managing the virtual machine environment, such as backing up and restoring virtual machines, migrating virtual machines to different hosts, and managing the virtual machine storage and network connectivity.
Virtual machine management is important for organizations that use virtualization technology to improve the efficiency and flexibility of their computing infrastructure. By using virtual machines, organizations can run multiple operating systems and applications on a single physical host, which can save on hardware costs and improve resource utilization. Virtual machine management enables organizations to effectively manage and maintain their virtual machines to ensure that they are running smoothly and efficiently.
you are working as a network analyzer for an isp. a client has approached you to set up a network connection for a bank with offices around the state. the network needs to connect these offices with each other in order to gather transaction and account information into a central database. which of the following connections will you provide in this scenario?
a. LAN
b. MAN
c. WAN
d. CAN
HS Computer Science Questions
The CPU is in charge of carrying out a program, which is a collection of stored instructions. An input device will be used to provide input for this application, which will then process the input and report the results to an output device.
What computer work with input, output processing?1.Typed text, mouse clicks, and other methods of entering data into a computer system are examples of input. Processing is the process of converting input data into output data. Output is what the computer produces after analysing the input—the visual, aural, or tactile experiences.
2. A directory structure is a type of container for files and folders. It uses a hierarchical structure to organize files and directories. A directory can be logically organized in a number of ways, some of which are listed below. The single-level directory is the simplest type of directory structure.
3. Data flow is the key of programming. Data is available for a programmer to input into a program. The software can interpret the input data using its own data. All of this information can be combined to represent concepts and benefit the user and the program.
Therefore, A computer is a tool that can be configured to take in data (input), transform it into information that is useful (output).
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In a database that contains tables with information about students in a university, which of the following should be the primary key?
Answer: StudentID
So, for a database that contains tables with information about students in a university, the best possible Primary key is their StudentID.
What is a Primary Key?
A primary key is one or more columns in a relational database table that uniquely identify each record in the table. The ideal primary key for a table of students, for example, would be their ID number, which would uniquely identify each student in the table.
A primary key will be assigned to each table in a database. The primary goal of defining a primary key is to identify each unique record in the table.
This makes it much easier to find a specific record in any given table. It also makes it much easier to identify a specific record that may share data with other records.
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Which method will search an array for the first occurrence of 10?
myArray.
(10)
index
find
append
search
If an array element cannot be found, the indexOf() function returns -1. It returns the first index of the element's occurrence.
Which approach searches an array for the very first instance of 10? The indexOf() method uses rigorous equality (the same algorithm as the === operator) to compare search Element to array items.In sparse arrays, the indexOf() technique leaves empty spaces unfilled.The method indexOf() is general.Only a length property and properties with integer keys are required for this value.The indexOf() method returns the array element's initial index of occurrence, or -1 if it cannot be found.An element's position inside the array is indicated by its index, which can either be a number or a field with a number (beginning at When you give an array name and index, the following guidelines apply:The name of the array must be a distinct symbolic name.To learn more about array refer
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Telnet is inherently insecure because its communication is in plaintext and is easily intercepted.
Which of the following is an acceptable alternative to Telnet?
Remote Desktop
SSH
SLIP
SHTTP
The most crucial factor is that SSH is significantly more secure than Telnet, which has led to Telnet nearly entirely being replaced in daily use. SSH uses different standard ports than Telnet does.
SSH vs. SSL: what are the differences?SSH is used to establish a secure tunnel to another computer from which you may issue instructions, transfer data, etc. This is the primary distinction between SSH and SSL. On the other hand, SSL is used to securely send data between two parties; unlike SSH, it does not allow you to issue commands.
Which encryption standards employ RSA?For digital signature and encryption purposes, RSA is used by numerous protocols, including Secure Shell (SSH), OpenPGP, S/MIME, and SSL/TLS.
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Can computers be opened from the All programs submenu
Answer:
I am pretty sure...if not try duck duck go
write a recirsive function named productsof odds that accepts a tuple
Answer:
def productOfOdds(t):
if len(t) == 1:
if t[0] % 2 == 1:
return t[0]
else:
return 1
else:
if t[0] % 2 == 1:
return t[0] * productOfOdds(t[1:])
else:
return productOfOdds(t[1:])
t = (1, 2, 3, 4, 5, 6, 7, 8, 9)
print("Product of odd elements:", productOfOdds(t)
A Creative Commons Attribution license means a work can
A. be used by anyone as long as credit is given to the creator.
B. be used by the original creator only.
C. be used by teachers or journalists only.
D. be altered and credit doesn't need to be given by anyone.
A Creative Commons Attribution license means a work can be used by anyone as long as credit is given to the creator.
What is a Creative Commons attribution license?A Creative Commons licence is one of several public copyright licences that allow for the unrestricted distribution of a work that would otherwise be copyrighted. A CC licence is used when an author wishes to grant others the right to share, use, and build upon his or her work.A CC licence or CC0 can only be applied to a copyrighted work by the copyright holder or someone with express permission from the copyright holder. You may not be the owner of the copyright if you created a work as part of your job.A creative commons licence is a free copyright licence that covers a wide range of genres. It provides users with the ability to share and distribute other people's work. The Creative Commons provides licensees with rights and reserves in a wide range of fields.To learn more about CC license refer :
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what is the path you have to follow in order to change the font of a selected text?
Answer:
Go to font dialogue box then select another font.
Explanation:
You can choose another font by going to the dialogue box and choose a different font.
The quantity of a product or product group can be calculated as the ... of the value and the uni price
a) no answer
b)sum
c)difference
d)ratio
e)product
The quantity of a product or product group can be calculated as the ratio of the value and the uni price. Thus, the correct option for this question is D.
What is the formula for the product cost?The formula for the product cost is as follows:
Product Cost per Unit Formula = (Total Product Cost ) / Number of Units Produced.In this case, if you want to avoid losses, the sales price must be equal to or greater than the product cost per unit. If the sale price is equal, it is a break-even situation, i.e., no profit or loss, and the sales price covers the cost per unit.
Therefore, the quantity of a product or product group can be calculated as the ratio of the value and the uni price. Thus, the correct option for this question is D.
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what is a website to make infographic on?
Answer: Piktochart , Canva , Domo
Explanation:
The ____ is made up of business that focus on digital equipment, software, communications technologies, and related services
Choose matching definition
a. ICT industry
b. True
c. Goods, services
d. Graphical user interface
The ICT industry is made up of business that focus on digital equipment, software, communications technologies, and related services.
What exactly do you mean by “ICT industry”?The information and communication technology (ICT) sector combines manufacturing and service businesses whose products largely fulfill or allow the function of information processing and communication via electronic methods, including transmission and display.Telecommunications devices (such as telephones), information kiosks, and transaction machines are examples of electronic and information technology. Websites that use multimedia.
The information and communication technology (ICT) sector combines manufacturing and service businesses whose products largely fulfill or allow the function of information processing and communication via electronic methods, including transmission and display. The ICT sector contributes to technical advancement, increased output, and productivity. And information technology will carry out our tasks
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Answer
Explanation
In the United States, the primary path to privacy is via __________, whereas in Europe and other countries, it is via __________.
A. opt-in; opt-in
B. opt-in; opt-out
C. opt-out; opt-out
D. opt-out; opt-in
In the United States, the primary path to privacy is via opt-out, whereas in Europe and other countries, it is via opt-in.
What are opt out opt in paths of privacy?The majority of significant privacy laws around the world, including the CCPA (California's Consumer Privacy Act) and the GDPR (General Data Protection Regulation) in Europe, now require that businesses give data privacy top priority when undertaking particular data collection and processing activities.
This necessitates the creation of simple, efficient procedures on websites that allow users to grant consent (also known as "opting in") or deny consent (commonly known as "opting out") for the purpose of revoking consent at any time.
Users must essentially provide their consent and take positive action in order to opt-in. Opt-in is used to consent to or accept something, to put it simply. Opt-out refers, as the name suggests, to the primary action consumers take to withdraw their consent. Opting out, to put it simply, is the action of users declining or withdrawing their consent in response to a certain event or process.
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how do I write a proper python dictionary for my rooms in my text-based adventure game? I have the entrance, the gallery (wizard hat), the cellar (wizard robe), the bedroom (the potion), dining room (spell book), dungeon (wizard orb), the living room (wizard staff) and the potion room (the wizard). (The items that go with the rooms are in parenthesis behind the rooms)
Python may be used to create text adventure games that the player enters text into, which causes the tale to change.
How to Create a Text Based Adventure Game in Python?If you're learning how to program, creating a text adventure game is a fun project to try. Python can be used to create text adventure games that the player enters text into, which causes the story to change.The Python script will go over a number of fundamental programming ideas. Print commands, if clauses, and functions are included in this.Using a common text file with the.py extension, you can write a script. If you are unfamiliar with Python syntax, check at some fundamental Python examples to help you learn it more quickly. You may also take a look at some practical Python one-liners to carry out specific tasks.Set up your story and welcome message in the main function of the Python code."AdventureGame.py" should be created as a new file.Include the primary starting function in the file. A brief introductory tale will be included in the feature to welcome the player to the adventure game. After that, it will call introScene, another function.To Learn more About Python refer To:
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Which of the following addresses is a nonroutable IPv4 address?answer choices
a) 172.35.193.1
b) 192.169.32.1
c) 168.192.32.1
d) 18.172.32.1
The address that is a nonroutable IPv4 address is option A: 172.35.193.1
What is a non routable IPV4 address?The IPv4 address whose ranges are reserved by the IANA for private internets and are not publicly routable on the global internet, in accordance with guidelines outlined in Internet Engineering Task Force (IETF) document RFC-1918are: IP addresses in the 10.0. 0.0/8 range from 10.0. 0.0 to 10.255. 255.255.
Therefore, one can say that Nonroutable IP addresses are those that are frequently used within a LOCAL Area Network (for example, your home or business) and cannot have their packets transported to (or from!) the Internet.
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this is a new capability for businesses provided by technologies able to analyze customer behavior over the internet.
The new capability for businesses provided by technologies able to analyze customer behavior over the internet is customer segmentation. The correct option is d.
What is customer segmentation?Customer segmentation is the process of categorizing customers based on how and why they purchase. It enables businesses to develop more targeted sales and marketing strategies for certain customer segments.
Customer behavior segmentation includes inclinations and frequent acts, feature or product use, and habits. This allows you to target your audience more effectively with relevant messaging. To begin, it is critical to establish strong customer relationships.
Therefore, the correct option is d, Customer segmentation.
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The question is incomplete. Your most probably complete question is given below:
Direct marketing.
Merchandise allocation.
Telephone trees.
Customer segmentation.
A low level distributed denial of service (DDoS) attack that involves SYN or SYN/ACK flooding describes what type of attack?
Note that a low-level distributed denial of service (DDoS) attack that involves SYN or SYN/ACK flooding describes "a TCP three-way handshake."
What is a DDoS attack?A low-level distributed denial of service (DDoS) attack that involves SYN or SYN/ACK flooding is a type of network-level attack. It is called a "low level" attack because it targets the lower layers of the network protocol stack, such as the transport and network layers.
In this type of attack, the attacker sends a large number of SYN or SYN/ACK packets to the target system in an attempt to overwhelm it with traffic. SYN packets are used to initiate a connection between two systems, and SYN/ACK packets are used to acknowledge and complete that connection. By sending a large number of these packets, the attacker can flood the target system with traffic and disrupt its ability to function normally.
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when would it make sense not to use database system
not needed for the user as it can cast a huge amount and overheads of purchasing the database and maintaining it:
Explanation:
How do you make a spreadsheet with formulas to show foriegn currency
Excel's Simple Currency Conversion function can be used to create a spreadsheet containing formulas to display foreign currencies is VLOOKUP(C2,F2:G7,2,0)*A2.
How can I have Excel perform currency conversions automatically?All you have to do is visit the sheet that has the exchange rates. Refresh All may be found under Queries & Connections > Refresh All. The currency conversion formula used by Excel would automatically update in addition to refreshing the exchange rates imported from the internet.Excel's Simple Currency Conversion function can be used to create a spreadsheet containing formulas to display foreign currencies: =VLOOKUP(C2,F2:G7,2,0)*A2. The Vlookup syntax finds the currency in the Excel Table, then gets the current exchange rate from column G and converts the USD value.To learn more about Currency conversion formula refer to:
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java the withdraw method works differently: it should first check if the balance is greater than amount to withdraw to allow the transaction to go. and also to look at the new balance and see if it goes below minimum balance to decide whether to subtract the fees from the current balance.
To implement the withdraw method as described, you could use the following pseudocode:
def withdraw(amount):
if balance > amount:
balance -= amount
if balance < minimum_balance:
balance -= fees
else:
print("Insufficient funds.")
The withdraw method first checks if the balance is greater than the amount being withdrawn. If it is, it subtracts the amount from the balance. Then, it checks if the new balance is below the minimum balance. If it is, it subtracts the fees from the balance. If the balance is not greater than the amount being withdrawn, it prints a message indicating that there are insufficient funds.
which of the following statements is true? you can open multiple documents at once by control-clicking or shift-clicking in the splash screen. you can open multiple documents at once by control-clicking or shift-clicking in the open dialog box. you can only open one document at a time in photoshop. you can open multiple documents at once by choosing select all in the import dialog box.
Answer: The answer is you can open multiple documents at once by choosing select all in the import dialog box.
Explanation: Hope this was helpful
Answer:
u can open multiple documents at once by choosing select all in the import dialog box
hope this helps
"Documentation written for programmers should include text and program flowcharts, ________, and sample output as well as system flowcharts.
A) Pseudocode
B) Logic errors
C) Program listings
D) Syntax errors"
Documentation written for programmers should include text and program flowcharts, Program listings, and sample output as well as system flowcharts. Thus, the correct option is option C.
What is program flowchart?The program flowchart is a data flow that depicts the data flow while writing a program or algorithm. When working with others, it enables the user to quickly explain the process. These flowcharts for programming also examine the reasoning behind the program to process the programming code.
The use of programming flowcharts is varied. For instance, they can examine, visualize, and work with the codes. In order to understand how a user uses a tool, they can also assist in determining the structure of the application.
The condition and effectiveness of work are improved by the use of programming flowcharts. The device has four fundamental symbols with programming code written on them.
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Analyze and compare iOS and Android operating systems (OS) to accurately differentiate between the two. (Select all that apply.)
Android releases updates often, while iOS is more sporadically released.
iOS is limited to Apple products, while Android has multiple hardware vendors.
Android is an open source OS based on Linux, unlike iOS, which is a closed and proprietary system.
iOS is more vulnerable to attack due to being a closed source, while Android is more secure with multiple partners working to secure the OS.
iOS is only compatible with Apple devices, but Android supports a variety of hardware manufacturers and is open source platform based on Linux, in contrast to iOS, and that's a closed or patented system.
Describe operating systems in simple terms.An software (OS) is the software that controls most other application applications running on a computer after being installed into the system first by a boot program. Throughout a stated api, the network applications seek services first from software (API).
What function does OS serve?The most crucial bit of technology that runs on a machine is the operating system. This then handles the resources, functions, program, and hardware of the computers. We can interact only with computer using this method even if you don't understand its language.
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opportunities & challenges of emmerging technology for ethiopia
Answer:
There are many potential opportunities and challenges that emerging technologies could bring to Ethiopia. Some potential opportunities include:
Improved access to information and education: Emerging technologies such as the internet and mobile devices could help to increase access to information and educational resources, which could in turn improve educational outcomes and economic opportunities for people in Ethiopia.Increased efficiency and productivity: Emerging technologies such as artificial intelligence, robotics, and automation could help to improve the efficiency and productivity of various industries in Ethiopia, which could help to drive economic growth and development.Improved healthcare: Emerging technologies such as telemedicine and medical devices could help to improve access to healthcare services in Ethiopia, particularly in rural and remote areas where access to healthcare is often limited.Improved communication and connectivity: Emerging technologies such as 5G networks and satellite technology could help to improve communication and connectivity in Ethiopia, which could have numerous benefits for both individuals and businesses.However, there are also potential challenges that emerging technologies could bring to Ethiopia, including:
The potential for job displacement: As emerging technologies become more prevalent, they could potentially displace workers in certain industries, which could lead to unemployment and social unrest.The potential for increased inequality: If emerging technologies are not adopted and implemented in an equitable way, they could exacerbate existing inequalities and create new ones.The need for infrastructure and investment: In order for emerging technologies to have a positive impact in Ethiopia, significant investment in infrastructure and training will be necessary. This could pose a challenge for a country with limited resources.The potential for security and privacy concerns: Emerging technologies also raise important security and privacy concerns, which will need to be addressed in order to ensure the safe and responsible use of these technologies.Use the most appropriate notation among O, Q, and W to indicate the time efficiency class of sequential search a) in the worst case. b) in the best case. c) in the average case.
Notation(O) is used to measures the worst case time complexity. In the best case, the time complexity of Linear Search is O. (1). In the worst-case scenario, the time complexity is O. (n).
What is linear search ?A linear search, also known as a sequential search, is a method of finding an element within a list in computer science. It checks each element of the list in turn until a match is found or the entire list has been searched.Linear search is usually very simple to implement and useful when there are only a few elements in the list or when performing a single search in an un-ordered list.When searching for multiple values in the same list, it is often advantageous to pre-process the list in order to use a faster method. For example, one could sort the list and perform binary search on it, or construct an efficient search data structure from it.If the list's content changes frequently, repeated re-organization may be more trouble than it's worth.To learn more about linear search refer :
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