Suppose that in a school with 150 total students, there are 10 students who have the flu. Administrators take an
SRS of 20 students to test for the flu. Let X = the number of students in the sample who test positive for the
flu.
Is X a binomial variable? Why or why not?

Answers

Answer 1

Answer:

The trials are not independent, so

X is not a binomial variable.

Step-by-step explanation:

Answer 2

The variable X is not a binomial variable. The reason for this is X is not independent.

What is a binomial variable?

A binomial variable is a variable that determines the frequency that an event would happen  in a fixed number of trials.  

The conditions for a binomial variable include:

The observation fall into either a success or failure category with an equal chance of happening.There are a fixed number of observationsThe observations are independent.

To learn more about binomial random variable, please check: https://brainly.com/question/25469830

#SPJ2


Related Questions

Two rectangular boxes have the same volume. One box is a cube, and the other box has dimensions 8 ft by 4 ft by 16 ft. How many feet long is an edge of the cube?

Answers

Answer:

8 feet

Step-by-step explanation:

All you have to do is find the area of one box and find the root to find the cube edge, as it says they have the same volume.

Lets find the volume of the rectangular box.

8 x 4 x 16 =

32 x 16 =

512.

The volume of the cube is 512 feet cubed, but you are looking for the edge.

The edge cubed should be equal to 512 feet cubed.

So 512 cube root is 8, because 8 x 8 x 8 is 512.

8 feet.

Hope this helps!

Answer:

The answer to your question is 2744 ft³

Step-by-step explanation:

Data

length = 14 ft

width = 14 ft

height = 14 ft

- Volume of a Cube

Volume = length x width x height

-Substitution

Volume = 14 x 14 x 14

-Simplification

Volume = 2744 ft³

Conclusion

The volume of this cube is 2744 ft³

Please help me answer 16 please

Answers

Answer:

SSS

Step-by-step explanation:

I can identify that these triangles are congruent by using the SSS (Side, Side, Side) postulate theorem. I know this because first, second, and home triangle share the same side as the third, second, and home triangle, meaning they are congruent, so are the other sides of the angle since the question states they are congruent.

i need help with this pleasee

Answers

Answer:2 2/15

Step-by-step explanation:

4/5= 12/15

+1 1/3 =5/15

1 and 17/15

17/15= 1 and 2/15 +1= 2 and 2/15

which expressions are equivalent to 3x+2(x-1)-4​

Answers

Answer:

5x - 6

Step-by-step explanation:

Do the distributive property and your equation should look like this 3x + 2x - 2 - 4

Then combine like terms

You get 5x - 6

pls mark branliest

answer

5x - 6

Step-by-step explanation:

Do the distributive property and your equation should look like this 3x + 2x - 2 - 4

Then combine like terms

You get 5x - 6

pls mark brainliest

This is the last giveaway for today!!
if you could be any movie character who would you be?

Answers

Answer:

I would be Channel #2 from scream queens

Step-by-step explanation:

Why just because she was the first one that came to mind :)

Answer:

Stitch from Lilo and Stitch ^^

Step-by-step explanation:

That movie always was a favorite of mine, also, so fluffy!

x−4y=−4 Determine the x- and y-intercepts for the equation given in standard form. Give your answers as integers.

Answers

Answer:

For X is (x=4y−4) and for Y is (y= 1 /4 x+1)

Step-by-step explanation:

Let's solve for x.

x−4y=−4

Step 1: Add 4y to both sides.

x−4y+4y=−4+4y

x=4y−4

Answer:

x=4y−4

Let's solve for y.

x−4y=−4

Step 1: Add -x to both sides.

x−4y+−x=−4+−x

−4y=−x−4

Step 2: Divide both sides by -4.

−4y /−4  =  −x−4 /−4

y= 1 /4 x+1

Anchara drops a penny from a height of 60 feet above the ground. The equation h=-16t^2 + 60 models the penbys height h i feet as a function of time t in seconds whatvare the solutions

Answers

Answer:

t = 1.94 seconds

Step-by-step explanation:

we have to solve the following polynomial equation:

-16t² + 60 = 0

16t² = 60

t² = 60/16 = 3.75

t = √3.75 = 1.936491673 seconds

the equation also has another possible answer = -1.936491673 seconds, but since time cannot be negative, we have to dismiss that option

if the expression (2y^a)^4 is equivalent to 16y^8, what is the value of a

Answers

Answer:

A = 2.

Step-by-step explanation:

When raising power to power and there is a base with a exponent and a coefficant, you need to know that the a exponent only belongs to the y. The 2 has a invisible 1 exponent. The new expression is now (2^1 y^a)^4 = 16y^8. Now it is time to solve it. 1x4 = 4 so it is (2^4 y^a) = 16y^8. 2^4 is also 2x2x2x2 which equals 16. Now for the a exponent, 8/4 =  ?. 2. The new expression is 16y^2 and a = 2.

if one apple cost 5 rupee orange cost 0.5 rupee and grape cost 0.25 rupee . find the number of apple orange ad grape we can buy from 20 rupee.

Answers

Answer:

3

Step-by-step explanation:

Add all the costs of the fruit.

5.75

Then divide it by 20.

= 3.4782.....

You can't have a quarter or half and apple so you round down.

Son answer is 3.

Hope this has helped!

Helppp plzz!!

A.) Side - Side - Side
B.) Side - Angle - Side
C.) Angle - Side - Angle
D.) Angle - Angle - Side
E.) Hypotenuse - Leg
F.) Not enough information.

Answers

Answer:

F. not enough information

Step-by-step explanation:

there are no markings as to the lengths and there is no way of knowing

find the slope of the line passing through the points (-5,5) and (-5,-8)

Answers

Answer:

1

Step-by-step explanation:

5-8            -3

----------=

-5--8         -3

-3

-----= 1

-3

Hope this helps!

-8 - 5 = -13
_____ ___

-5 + 5 = 0

So there is no slope because it’s a vertical line. It stays on the x-axis since there was no change in x-values.

The equation would simply be x=-5, and there is no slope.

The equation for slope formula is
(y2-y1)/(x2-x1)

I hope this helped its a little confusing yes

A farmer's market is selling peaches for $2.00 a pound. If you buy 2 pounds, you save 10% on each pound. How much does it cost to get 2 pounds of peaches?

Answers

Answer:3.6

0

Step-by-step explanation:

Because 10 percent of 1.00 is 0.10 and if you do 10 percent of 1.00 times two it is 20 percent of 2..00 which is 0.4

She dove 75 feet under the sea

Answers

Amazing, 75 ft under the sea, wow. Could never be me

WHAT IS THE VALUE OF THIS EXPRESSION BELOW WHEN Z=3
3z-1?

Answers

Answer:

8

Step-by-step explanation:

3(3)-1

=9-1

=8

PLS GIVE BRAINLIEST

The answer is 8

Hope this helps!!
And if you need it written out, go to the dude up top lol ✌


Which is a possible leading term for the graph
shown?
2x^3 -2x^3 2x^4 -2x^4

Answers

Answer:First answer 2x^4. Second answer + and +

Step-by-step explanation:

Just did it on edge

Answer:

C

Step-by-step explanation:

I’m smart

you convert 71,100,000 into scientific notation?

Answers

7.11x10^7 would be 71,100,000 in scientific notation

75=-5(3+6m) I need this​

Answers

Are you finding m? If so here is the answer:

75 = -5(3 + 6m)

Distribute:
75 = -15 - 30m

Add 15 to both sides:
75 = -15 - 30m
+15 +15
90 = -30m

Divide by -30 on both sides:
90/-30 = (-30m)/-30

You should get: m = -3

Write an equation of the line passing through the point (2,8) that is perpendicular to the line 2x-3y=7

Answers

Answer:

y = (-3/2x) + (35/4)

Step-by-step explanation:

So the perpendicular line will have a slope that is the opposite reciprocal of the other line's slope. Solve for the original line's slope first:

2x - 3y = 7 --> -3y = -2x + 7 --> y = (2x/3) - (7/3)

So, the slope of the perpendicular line will be (-3/2x)

Solve for the y-intercept of the perpendicular like by using the linear equation and substituting in (2,8):

8 = (-3/(2*2)) + b --> (32/4) = -(3/4) + b --> b = (35/4)

So, y = (-3/2x) + (35/4)

Hope that helps! :D

Find the value of x that makes FGH~JKL

Answers

180 degrees it’s the answer

Write and evaluate the expression. Then, select the correct answer.

ten times the sum of seven and a number;
evaluate when j = 1

A 2-column table with 5 rows. Column 1 is labeled Key Words with entries ten, times, the sum of, seven, a number. Column 2 is labeled Replace with entries 10, times, (+), 7, j.

10 × 7 + j; when j = 1, the value is 71
7(10 + j); when j = 1, the value is 77
10(7 – j); when j = 1, the value is 60
10(7 + j); when j = 1, the value is 80

Answers

Answer:

The correct option is:

10(7+j); when j=1, the value is 80.

Step-by-step explanation:

Let 'j' is the number

Ten times the sum of seven and a number means:

10(7 + j)

When j=1, the expression becomes

[tex]10(7+j) =10(7+1)[/tex]

              [tex]=10(8)[/tex]

              [tex]=80[/tex]

Hence, the value of the expression at j=1 is 80.

i.e.

10(7+j); when j=1, the value is 80.

Therefore, the 4th option is the correct answer.

Answer:

10(7 + j); when j = 1, the value is 80

Step-by-step explanation:

because i just did it

tiffany answered 90% of questions on her math test correctly there were 50 questions on the test how many questions did tiffany answer correctly

Answers

45 questions

.9 x50 = 45

Amanda is making white oatmeal cookies with raisins and pecans for her club.The recipe makes seventeen of the big,chewy kind of oatmeal cookies with lots of raisins and nuts.It takes one-fourth of a cup of nuts and one-half of a cup of raisins just for the seventeen cookies!There are thirty-four members in Amanda's club .If she makes exactly thirty-four cookies,how many cups of nuts will she need ?

Answers

Answer:

1/2 cup of nuts

Step-by-step explanation:

If it takes 1/4 cups of nuts to make 17 cookies

Then it takes 1/4 * 1/17  = 1/68 cups of nut to make 1 cookie

So,

If 1/68 cups of nut are needed to make 1 cookie

To make 34 cookies we need;

34 * 1/68 = 1/2 cup of nuts

What is the slope of this line?

Answers

Answer:

Slope = rise/run

          = 1/4

Answer:

Slope is 1/4, or .25

Step-by-step explanation:

If you use rise over run, you will find that the slope is 1/4.  

Say you take two points, (-4,5) and (8,8). Subtract 5 from 8, and you get 3. Then subtract -4 from 8, you get 12. 3/12 simplified is 1/4, thus your slope is 1/4.

There are 24 hours in 1 day. If you sleep 30% percent of the day how many hours do you sleep

Answers

7.2 hours a day. You get this answer by dividing 24 by 10 because that is 10% which is 2.4, multiply this by three which equals 30% and the answer is 7.2

Step-by-step explanation:

30%of24

30÷100×24

7.2

Kiran and Clare live 28 miles away from each other along a rail trail Kiran walks at a speed of 3 miles per hour while Clare walks 4 miles per hour how long will it take the two friends to meet

Answers

Answer:

Step-by-step explanation:

Total distance between Kiran and Clare is 24 miles. They started walking at 8.00 am.

Speed of Kiran is 3 miles/hr and speed of Clare is 3.4 miles/hr.

So the relative speed of them is,

miles/hr

Both the speed are added as they moving in opposite direction.

We know that,

i.e  

Putting the values,

As they started at 8.00 am, so the time at which will meet will be,

Step-by-step explanation:

Jasim has invested 600 dinars in a business at the rate of 4 % for 3 years. Find his

i- simple interst ?


ii- total amount after 3 years ​

Answers

Answer:

Simple interest=72dinars

Total amount=672dinars

Step-by-step explanation:

i.Simple interest=(P×R×T)/100

Interest=(600×4×3)/100=72dinars

ii.Total amount after 3years=Principal+Simple interest

=600+72=672 dinars

please help with this
i’ll give brainlist

Answers

Answer:

i think c

Step-by-step explanation:

Determine the leading coefficient of the polynomial p, which has exactly three roots: -1, 1 and 2, and for which p(3) = 24 is true.


Answers

Answer:

The polynomial is [tex]x^3-2x^2-x+2[/tex]

Leading coefficient is 1

Step-by-step explanation:

We need to determine the leading coefficient of polynomial p having roots

-1,1 and 2 and p(3)=24

Roots of polynomial are: -1,1,2

We can write them as:

x=-1, x=1, x=2

x+1=0, x-1=0, x-2=0

or:

(x+1)(x-1)(x-2)=0

Multiplying the terms to find the polynomial:

[tex](x+1)(x-1)(x-2)=0\\(x(x-1)+1(x-1))(x-2)=0\\(x^2-x+x-1)(x-2)=0\\(x^2-1)(x-2)=0\\x^2(x-2)-1(x-2)=0\\x^3-2x^2-x+2=0[/tex]

So, The polynomial is [tex]x^3-2x^2-x+2[/tex]

The leading coefficient is the coefficient with highest power So, in polynomial we have highest power [tex]x^3[/tex] so, leading coefficient is 1

In triangle ABC, AB=5cm, AC = 10cm, and BC = 12 cm
Determine the size of the largest angle.​

Answers

Answer:

The largest angle is <B.

Because, AC is the longest and largest side of ∆ABC. Therefore, the angle opposite the largest side is also the largest.

This is a property in geometry.

Step-by-step explanation:

Please give me Brainlest!

A regular decagon is rotated n degrees about its center, carrying the decagon onto itself. The value of n could be:
1. 10 degrees
2. 150 degrees
3. 225 degrees
4. 252 degrees

Answers

Answer:

252°

Step-by-step explanation:

Given

Shape: Decagon

Required

Determine the value of n

A Decagon has 10 sides and a complete rotation takes 360°

First, we need to calculate the angle of each rotation as follows.

Each Rotation = ⅒ * 360°

Each Rotation = 360°

Next, we determine the possible values of n.

The statement is represented as "possible values of n" because n can assume infinite number of values.

However, n must be a multiple of 36

From the list of given options.

10, 150 and 225 are not multiples of 36

Only 252 happens to be a multiple of 36 from the list of given options.

Hence, option D answers the question [base on the given options]

A decagon is a ten-sided polygon.

The value of n could be 252 degree.

Since, A Decagon has 10 sides

The angle made in one complete rotation is 360 degree.

Now find angle made in each rotation is,

                          [tex]=\frac{360}{10}=36degree[/tex]

Now, we have to find possible values of n.

Since, n must be a multiple of 36

Apply hit and trial from given option.

We observe that from given options, only 252 degree is multiple of 36.

Therefore, value of n could be 252 degree.

Hence, option 4  is correct.

Learn more:

https://brainly.com/question/9549251

Other Questions
How many atoms are there in one mole of CH3OH Please help :( Im having troubles answering this problem Lee y escoge la opcin con la palabra o palabras correctas para completar la frase.Read and choose option with the correct word or words to complete the sentence.Me gustaayudar a mi madre en la casa. (1 point)1) comer2) dormir3) poder4) jugar Read the excerpt from The Strange Case of Dr. Jekyll and Mr. Hyde.This hall, in which he was now left alone, was a pet fancy of his friend the doctors; and Utterson himself was wont to speak of it as the pleasantest room in London. But tonight there was a shudder in his blood; the face of Hyde sat heavy on his memory; he felt (what was rare with him) a nausea and distaste of life; and in the gloom of his spirits, he seemed to read a menace in the flickering of the firelight on the polished cabinets and the uneasy starting of the shadow on the roof. He was ashamed of his relief, when Poole presently returned to announce that Dr. Jekyll was gone out.Which statement best describes how the author establishes mood in the excerpt?The authors description of the grand room creates an admiring mood.The authors description of physical symptoms creates an anxious mood. The authors mention of Uttersons thoughts creates a sentimental mood.The authors mention of Uttersons spirits creates a spiritual mood. Write a conversation between two Friendswho areplanning to visit new school I will give brainliest.........................Please explain please.......................... a pice of land was sold for rs. 1,20,000 a broker who recived 1.5% of commision. THe broker gets amount of Rs.____ Select the correct answerWhich factor increases the risk of is project delays?Options on picture At Emily's summer camp, there are6 counselors for every 40 girls. How manycounselors should the camp have for 100girls? What is the difference between a histogram and a bar graph?a A histogram presents information in horizontal bars, while a bar graph presents information invertical barsb. A histogram deals with data which displays a normal distribution, while a bar graph deals withdata in any distributionc. There is no difference. The two terms are synonymous.d. A histogram deals with continuous data in ordered columns, while a bar graph deals withdiscrete data in separate columns if we all have atoms and atoms technically never touch then we've never touched anything in our lives. is this true? who was the leader of christianity World War one match the answers plz help Si el numero promedio de solicitudes de viaje por crucero que recibe una agencia de viajes es una variablealeatoria con lamda 2.5, determine las probabilidades de que en cualquier da la agencia reciba:a.- Ninguna solicitud de viajeb.- cuando menos una how many solutions does 3x+5=7x-20 have? 1. ) presence of basic rights of united kingdom, north korea, and u.s2.) relationship between legislative and executive branches of the united kingdom, north korea, and u.s3.) seat of power? (leadership elected, appointed, inherited) of the united kingdom, north korea, and u.s4.) form of government between the united kingdom, north korea, and the u.s5.) Participation by people in the governing process of the united kingdom, north korea, and the u.s6.) Written or unwritten constitution of the united kingdom, north korea, and the u.s7.) what kind of economic system does the united kingdom, north korea, and the u.s have?You don't have to answer it all. If you know one of the questions, that helps.Please help me w/ this, i really appreciate it. Thanks! :) three elements of democracy laid forth in the Fundamental Orders of Connecticut. Taylor plans to borrow $4,500 from the bank to purchase a used vehicle. If he borrows the money at a rate of 4% interest for 2 years, what is the total amount he will have to pay back to the bank? What does cpu mean Which increased as a result of the industrial Revolution? Check all that apply A. Greenhouse gas emissions B. Urbanization C. Gaps in global wealth D. Toxic waste