Microsoft wants to administer a satisfaction survey to its current customers. Using their customer​ database, the company randomly selects 50 customers and asks them about their level of satisfaction with the company. What type of sampling is​ used? A. Systematic B. Convenience C. Simple random D. Cluster E. Stratified

Answers

Answer 1

Answer:

Simple random

Step-by-step explanation:

There are various methods which may be employed when we intend to select a certain few from a larger group of subjects. The simple random sampling may be described as the most basic form of random sampling whereby a smaller group or subset is chosen from the larger population entirely by chance (each subject or member of the population has equal chances of being selected). A simple random sampling, the larger group isn't partitioned or subdivided prior to selection, the subsets are just selected as they are. In the scenario above, the database is the population and the 50 samples are selected directly from the database without splitting or prior partioning of the population data.


Related Questions

Which method of calculating finance charge results in the lowest finance charge? a. average daily balance b. previous balance c. ending balance d. adjusted balance Please select the best answer from the choices provided A B C D

Answers

Answer: D

Step-by-step explanation:

adjusted balance

Answer:

above is correct

Step-by-step explanation:

d

If your weekly salary is $1780 and taxes takes out $440, then what percent do you pay in taxes?
Round your answer to 1 decimal place.

Answers

Answer:

24.7

Step-by-step explanation:

If your weekly salary is $1780 and taxes takes out $440, then 24.7% you pay in taxes.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that the weekly salary is One thousand seven hundred and eighty $1780.

Taxes takes out is four hundred and forty $440.

We need to find the percent of tax we have paid.

This can be found by as below.

1780x=440

Divide both sides by 1780

x=440/1780

x=0.247

Now multiply with 100 as it is a hundredth part

0.247×100=24.7%

Hence, 24.7% is the percentage of tax we have paid.

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PLSSS ANSWER JUST PUT THE NUMBER OF THE QUESTION THEN THE ANSWER PLS HELP ITS OVERDUE AND IM GONNA FAIL 7TH GRADE :(
I WILL GIVE BRAINLIEST EVERYONE KEEPS GIVING ME RANDOM LINKS IM CRYIING :( I WOULD BE SO GRATEFUL IF U HELPED UR A LIFE SAVER

Answers

Answer:

11=  21

12= -12

13= -72

14= -1

Step-by-step explanation:

Answer:

11) 21

12) -5

13) 8

14) 9

Step-by-step explanation:

i passed 7th grade (teehee)

Help please and why

Answers

A hopes that helps
Because with you divided 16 1.25

please help mark brainliest ( no attachments please)

Answers

Answer:

I think 3 hours

Answer:

2/6 in 2 hours

Step-by-step explanation:

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she doesn't want to give away free hamburgers to more than 1% of her customers. What number of minutes should the advertisement use

Answers

Answer:

The advertisement should use 16 minutes.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

[tex]f(x) = \mu e^{-\mu x}[/tex]

In which [tex]\mu = \frac{1}{m}[/tex] is the decay parameter.

The probability that x is lower or equal to a is given by:

[tex]P(X \leq x) = \int\limits^a_0 {f(x)} \, dx[/tex]

Which has the following solution:

[tex]P(X \leq x) = 1 - e^{-\mu x}[/tex]

The probability of finding a value higher than x is:

[tex]P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}[/tex]

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.

This means that [tex]m = 3.5, \mu = \frac{1}{3.5} = 0.2857[/tex]

What number of minutes should the advertisement use?

The values of x for which:

[tex]P(X > x) = 0.01[/tex]

So

[tex]e^{-\mu x} = 0.01[/tex]

[tex]e^{-0.2857x} = 0.01[/tex]

[tex]\ln{e^{-0.2857x}} = \ln{0.01}[/tex]

[tex]-0.2857x = \ln{0.01}[/tex]

[tex]x = -\frac{\ln{0.01}}{0.2857}[/tex]

[tex]x = 16.12[/tex]

Rounding to the nearest number, the advertisement should use 16 minutes.

ANSWER !!
ILL GIVE 40 POINTS !!
DONT SKIP :((
PLUS BRAINLIEST !

Answers

The dot isn’t shaded so > or <

From -55, it’s showing small than

From -49, it’s showing greater than

x < -55 or x > -49

Answer:  x < -55 or x > -49

Step-by-step explanation:

x < -55 or x > -49

They both start with an opened circle, and also these two opened circle dots do not connect to each other. On the left side, the number is going from -55 to the smaller side, -57 or less, so we can say that x is smaller than -55. On the right side, the number goes from -49 to the bigger number, we can say that x is greater than -49.

12x^3-8x^2-32x factoring

Answers

Answer:

= 4x (3x+4) (x−2)

Step-by-step explanation:

12x^3−8x^2−32x

= 4x (3x+4) (x−2)

it takes Emma 18 minutes to type 14 pages of a manuscript. find how long it takes her to type 77 pages

Answers

Answer:

99 minutes

Step-by-step explanation:

18/14 = 1.286 minutes per page

1.286 x 77 = 99 minutes

Help please question in the picture

Answers

Answer:

81 m²

Step-by-step explanation:

The area of the figure = area of the rectangle + area of the triangle

= Length*Width + ½*base*height

Length = 10 m

Width = 6 m

base = 6 m

height = 7 m

Thus:

Area = 10*6 + ½*6*7

Area = 60 + 21 = 81 m²

for each of the following find the missing sides

Answers

Answer:

the missing side is 90 because is a right triangle



The function f(x) models the value of imported goods into the United States, and the function g(x) models the value of exported

goods from the United States, where x is the number of years since 1990.


Which statements are correct?

A) g(x) appears to be a linear function

B) f(x) appears to be an exponential function


C)Exports increase more quickly around the year 2041


D) Exports eventually exceed imports from the united States


E) A quantity increasing exponentially eventually exceeds a quantity

increasing linearly

Answers

Answer:

C, D, E

Step-by-step explanation:

I did the USATESTPREP

5th grade math. correct answer will be marked brainliest

Answers

Answer:

8

Step-by-step explanation:

4/5 of 10 is 8

4/5*10

Answer:

zack has 8 stamps.

Step-by-step explanation:

total stamps: 10

fifths: 10 divided by 5 = 2

so each part is worth 2 stamps.

so now : 2 x 4 = 8

therefore 8 is answer.

im not wrong

im am a high schooler

now mark me brainlist please.

hope it helps.

What is the arc measure of PQ?

Answers

Answer:

47.1

Step-by-step explanation:

l= rø

or, l= 18 × 5π/6

or, l= 15π

l = 47.1

47.1 your welcome now can you please help me with my history work

Luke's answer makes sense or is nonsense.His model is correct or incorrect. There are [blank] not 3 inches, in a foot.

Answers

Luke’s answer is nonsense. His model is incorrect. There are 12 inches, not 3 inches, in a foot.

Clara has 3 bottles of paint. She buys 5 more bottles of paint. If she uses 1/4 bottle of paint to paint a picture, how many similar paintings can she paint with all the paint?

ANSWER:
She has 3+5=8 bottles of paint. 1/4 bottle paints a picture.
8 divided by 1/4 = 32 paintings possible with all the paint

Answers

Answer:

32 Paintings

Step-by-step explanation:

8 Bottles 4 per one bottle so 8x4 =32

Hoped this helped.

. Find the cost of lodging: Four people staying for three nights at a cabin priced at $36.00 per night for two people, plus $3.50 per additional person

Answers

The cost of lodging is $129

HELPPP!!!


John is packing a box that is shaped like a cube and
has an edge that is 15 centimeters long. How much
space is available in the box for John to pack?

Answers

Answer:

810

Step-by-step explanation:

multiply them.  

Your welcome,

1.
Which equation has a solution of 8?
A = 16
C 8
B =
r
8
B 4r = 16
D-2r= -16

Answers

Answer:

it's x + 2 = 10 ,x - 4 = 4 , 3 x =24 and x over 8 = 1

Step-by-step explanation:

I guess that's the right answer

7.3 Times 10 to the power of two

Answers

Answer: the answer is 730

Step-by-step explanation:

Hope this helps you! Have a good day! :)

meteroloogist track severe stoms using Doppler radar. A polar grid is used to measure distances as the storms progress. If the center of the radar screen is the origin and each ring is 10 miles farther from the center, what is the equation of the fourth ring

Answers

Answer:

[tex]$(x-h)^2+(y-k)^2= (r+ 40 )^2$[/tex]  

Step-by-step explanation:

It is given that a meteorologist is using a Doppler radar to find out the distance of the storm as it passes using a polar grid.

The origin of the radar screen is its center.

And the distance between each ring is 10 miles from the center.

So let :

r = radius

h and k = be the coordinates of the center.

So the equation of a circle is :

[tex]$(x-h)^2+(y-k)^2= r^2 $[/tex]

Now the equation of the fourth circle when the radius changes by 10 miles is :

[tex]$(x-h)^2+(y-k)^2= (r+ 40 )^2$[/tex]  

In a popular online role playing game, players can create detailed designs for their
character's "costumes," or appearance. Fatoumata sets up a website where players
can buy and sell these costumes online. Information about the number of people who
visited the website and the number of costumes purchased in a single day is listed
below.
126 visitors purchased no costume.
228 visitors purchased exactly one costume.
34 visitors purchased more than one costume.
Based on these results, express the probability that the next person will purchase
exactly one costume as a decimal to the nearest hundredth.
Mk

Answers

Answer: 0.59

Step-by-step explanation:

The probability that the next person will purchase exactly one costume is 0.59.

What is probability?

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

Total number of visitors = 126+228+34 = 388

Total number of visitors who purchased exactly one costume = 228

The probability = 228/388 = 0.587 ≈ 0.59

Thus, the probability that the next person will purchase exactly one costume is 0.59.

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how many hundred billions in the number 432,845,979,484

Answers

There are 4 hundred billions in the number 432,845,979,484.

To determine how many hundred billions are in the number 432,845,979,484, we need to consider the place value of the hundred billions digit.

The number 432,845,979,484 has 12 digits, and we count the digits from right to left, starting with the units place. The digit in the hundred billions place is the seventh digit from the right.

Let's break down the number:

4 hundred billions (4 x 100,000,000,000)

3 ten billions (3 x 10,000,000,000)

2 billions (2 x 1,000,000,000)

8 hundred millions (8 x 100,000,000)

4 ten millions (4 x 10,000,000)

5 millions (5 x 1,000,000)

9 hundred thousands (9 x 100,000)

7 ten thousands (7 x 10,000)

9 thousands (9 x 1,000)

4 hundreds (4 x 100)

8 tens (8 x 10)

4 units (4 x 1)

As we can see, there are 4 hundred billions in the number 432,845,979,484.

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Choose all lengths that are equal to
6 feet 12 inches.

Answers

Answer:

Can you show a picture? Or like tell us the options?

Please need help thank you

Answers

Answer:

12 miles

Step-by-step explanation:

Area=length*width

To find the length using the area, do area/width.

96/8=12

CONVERT THE PERCENTAGES FRACTION 120%​

Answers

Answer:

[tex]\frac{6}{5}[/tex]

Step-by-step explanation:

Answer:

6/5

Step-by-step explanation:

Its 6/5..

1 = 20%

Please give brainliest

What is the expected value when rolling a fair 12-sided die?

Answers

Answer:

I think 1/12

Step-by-step explanation:

since the question didn't specifically the possibility of a certain number shown.

note this applies to probability related questions

Can anyone help me please:)

Evaluate the expressions below.
14x + 2 and 2(7x + 1)
x = 10

Answers

Answer: 142 and 142

Explanation: 14x + 2 and 2(7x + 1)
14(10) + 2 = 142 and 2(7(10) + 1) = 142

Hope this helped! :)

Answer:

142

Step-by-step explanation:

14x+2

(14)(10)+2

=142

2(7x+1)

2((7)(10)+1)

=142

hope this helped! :]

Fran has 18 paperback books and 24 hardcover books. What is the ratio of hardcover to paperback books?
WILL GIVE BRAINLIEST
3:4


4:3


3:7


7:3

Answers

The correct answer is 3:4

Select the correct answer. 1 -23 1-4 What is the result of the operation 2 O A. 6 -10 -2 -16 4 6 -2 R 5 8 6 _4 Ос. 16 -4 6 4 2 6 -10 2 -16 4 -4 -28​

Answers

9514 1404 393

Answer:

  D

Step-by-step explanation:

Choices A and D agree in all but one term: row 2 column 3 is (-2)(3) = -6. The term with the correct sign is only found in choice D.

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On June 1, 2020, Forde Auto Manufacturer sells a 4-door sedan to a dealer for $6,000, which includes three years of maintenance. The standalone selling price of the vehicle is $6,000 and the standalone selling price of the maintenance contract is $400. In addition, Forde offered a $100 cash incentive (per vehicle purchased) to the dealer if the vehicle was purchased in the first week of June 2020. a. How should the transaction price be allocated among the performance obligation(s) for sales made in the first week of June? b. Prepare Fordes journal entry to record the sale of vehicles for cash, assuming that dealers purchased 20 vehicles during the first week of June 2020. Ignore the cost of sales entries Live worksheets Lesson 15 Homophones answers Identify the volume the solid of revolution that is produced whena rectangle with length 6 and width 3 is rotated around one of itsshorter sides. A school district is considering moving the start of the school day at Groveland High from 8:00 a.m. to 9:00 a.m. to allow students to get more sleep at night. They want to estimate how many more hours of sleep teens get if their school starts at 9:00 a.m. compared to teens whose schools start at 8:00 a.m. The district takes random samples of 50 of students from Groveland High and 39 students from Phillips High School, which starts at 9:00 a.m., and surveys them about their sleep habits. The sample mean number of hours of sleep per student at Groveland is 7.1 hours, and the standard deviation is 1.7 hours. At Phillips, the sample mean is 8.3 hours of sleep, with a standard deviation of 1.9 hours. What is the 90% confidence interval for the difference in mean hours of sleep for students at the two high schools The diameter of a semicircle is 10 meters. What is the perimeter of the semicircle, in meters? Round your answer to the nearest tenth. I need this answered quickly! Please and Thank you! 3 Next End of Semester Test: English 6B Submit Test Reader Tools 6 Info Select the correct answer. Read the passage from Narrative of Sojourner Truth. Use context clues to determine what the word interposed means. When her master saw her, he said, 'Well, bell, so you've run away from me.' 'No, I did not run away, I walked away by day-light, and all because you had promised me a year of my time.' His reply was, 'You must go back with me.' Her decisive answer was, 'No, I won't with you.' He said, 'Well, I shall take the child.' This also was as stoutly negatived. go back Mr. Isaac S. Van Wagener then Interposed, saying, he had never been in the practice of buying and selling slaves; he did not belleve in slavery; but, rather than have Isabella taken back by force, he would buy her services for the balance of the year-for which her master charged twenty dollars, and five In addition for the child. OA. departed B. Interrupted Oc. Intimidated D. promised O E. purchased PLEASE HELP!!I dont know how to solve Law of Sines, it doesnt make sense to me.Ill award the brainliest! Given the current state of Germany after World War I, how might German leaders use anti-semitism to help gain power? Plz help me no links to anything plz I just wanna finish this so I can start summer break.1. Volcanoes are not found where tectonic plates are diverging or converging.a. TRUE b. FALSE A 57-tooth spur gear is in mesh with a 23- tooth pinion. The pd = 6 and the ? = 25. The gearset transmits 125hp at 1000 pinion rpm. Find the torque on a) the pinion shaft and b) the gear shaft. a boy has only dimes and quarters in his piggy bank. If he has 50 coins worth 7 dollars and 55 cents altogether, how many quarters does he have in his bank PLZ HELP 3 MINUTES LEFT WIL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! As only cash has been transferred Ron would not be realizing any gain or loss on this transaction and thereby no amount would be recognized. 6. (5 pts) From among the isomeric compounds with molecular formula C4H9Cl, identify the one having a 1H NMR spectrum that: a) contains only a single peak b) has several peaks, including a doublet at d 3.4 c) has several peaks, including a triplet at d 3.5 d) Has several peaks, including two distinct signals, each with an integration of 3H, one of them a triplet at d 1.0 and the other a doublet at d 1.5. Worth five points! it doesnt tell me if what answer is right but if i get 75% or up i will mark the first person who answered with an actual answer brainliest and i don't lie about brainliest!! Please no nonsense answers I just want help :(What is mU?A. 17B. 29C. 46D. 134 Evaluate. 72 - 3 + 9 8 2 w = Cause: Mrs. Stepanek forgot to charge her computer before school.Effect: Centerville Middle School spends $13 for every workbook it buys. At most how manyworkbooks can Centerville Middle School buy if it has $26 to spend? Would you consider data on grades (of a particular class)collected over two semesters to be cross-sectional or times seriesdata and why?