Mathematics College

A class with 25 students randomly selects a different student each week to bring a class snack. Of the students,
8% have food allergies. Let T be the number of weeks until a student with a food allergy is selected to bring the
snack
What type of variable is T?







Need help!!!

A Class With 25 Students Randomly Selects A Different Student Each Week To Bring A Class Snack. Of The

Answers

Answer 1

Answer:

Neither

Step-by-step explanation:

Answer 2

The variable T (weeks until getting food allergic student) follows Geometric Distribution

Given : 25 students & different student chosen to bring snack each week, 8% students have food allergies

To find : T ie number of weeks until student with food allergy is selected, follows which statistical distribution

Let's assume the probability of success be probability of choosing a student with food allergy . Also, let the number of weeks refer to number of trials. Binomial Distribution shows probability of getting 'x' successes out of n trials, when probability of success and failure 'p' & 'q' are given. Geometric Distribution is a type of negative binomial distribution, denoting  number of trials needed to achieve a success.

In this case, we need to find number of weeks trials, needed to achieve a success - ie a student with food allergy.

Hence this follows a Geometric Distribution.

To learn more, refer https://brainly.com/question/9362207?referrer=searchResults

Related Questions

One number is three less than two times another number. If the sum of the numbers is 15, find the numbers

Answers

9514 1404 393

Answer:

  6, 9

Step-by-step explanation:

Let x represent one of the numbers. Then the other number is 15-x (because their sum is 15). The relation between the numbers is ...

  2x -3 = 15 -x . . . . . three less than twice one number is the other number

  3x = 18 . . . . . . add 3+x

  x = 6 . . . . . . divide by 3

  15-x = 9 . . . . find the other number

The two numbers are 6 and 9.

21. 5c+d=c+40
(a) Find the ratio c:d

Answers

the answer is…

d = -4c + 40! hope this helps

Determine the perimeter of the composite figure.​

Answers

Answer:

50.26 if you use 3.14 for pi

50.35 if you use 3.15 for pi

Step-by-step explanation:

First, we find the circumference of the circle in the center.

(15 - 3 - 3)/2 = 4.5

4.5 is the radius

Equation for circumference: 2*pi*r

2*pi*4.5

9pi

Depending on where you normally use 3.14 or 3.15 for pi changes the answer but for this example I will use 3.14

The circumference of the circle is 28.26

Next, add the other sides of the figure.

28.26 + 3 + 3 + 3 + 3 + 5 + 5 = 50.26

what is the value of (-15/8 + l.5) divided by (15-14 3/4)

Answers

Answer:

-1 1/2

Step-by-step explanation:

1.5 = 1 4/8 = 12/8

(-15/8 + 12/8) = -3/8

(15-14 3/4 = 1/4

-3/8 ÷ 1/4 = -3/8 × 4/1 = = -3/2 or -1 1/2

each scatter ot below shows the same data which scatter plot has the most reasonable line of best fit?​

Answers

Answer: 2nd

plots fit the red line closer than the 1st

Answer:

here's the answer!

Step-by-step explanation:

The stock of Company A lost $0.91 throughout the day and ended at a value
of $51.09. By what percentage did the stock decline?

Answers

Answer:

1.75

Step-by-step explanation:

just check and that person was wrong

Answer: 1.75%

Step-by-step explanation: new value: $51.09

51.09+0.91=\$52.00

Old value: 51.09+0.91=$52.00

52(1-r)=51.09

52(1−r)=51.09

{52(1-r)}{52} ={51.09}{52}

52

52(1−r)

​

= 1.75%

How many solutions does the system of equations below have?
y = x - 4
8
y = x +
7
no solution
one solution
infinitely many solutions

Answers

Answer:

8888999999999999iiiookkjhghhhhhhukkikkii sorry i dont know

I would say no solutions.

PLS I NEED HELP!!
Will mark

Answers

The volume is 15 buddy

3 - 8 + (-9) ÷ 3 x 4​

Answers

Answer:

-17  or (-12) - 5

Step-by-step explanation:

Mark me brainllest

find the first two expressions in the sequence _, _ , 4x+5, 5x+7, 6x+9, 7x+11, 8x+13

Answers

Answer:

3x+3

Step-by-step explanation:

notice how the first numbers are on order and the second ones skip count by odd numbers

help please! need it asap

Answers

Answer:

AE = 19 and <EDC = 59

Step-by-step explanation:

i am almost positive that those are both right

Can someone help me pls

Answers

Answer:

[tex] m\overset{\Large\frown}{EFC} = 237° [/tex]

the product of (y + 2) and (y - 2) if y=7

Answers

The answer is 45

Hope its a correct one

The model represents an equation . What is the solution for this equation . Please help I’ll mark you as brainliest if correct

Answers

Answer:

x=3

Step-by-step explanation:

4x+6=18

4x=18-6

4x=12

x=12÷4

x=3

please answer, will mark brainliest

Answers

Step-by-step explanation:

Total T- shirts

5+7+9+4=25

Probability of red T-shirt

9/25 Answer

Find the dot product of the two given vectors, u= [1, 6] and v= [-5, -2]
A. negative 17
B. negative 7
C. 7
D. 17

Answers

Answer:

b.negative 17

Step-by-step explanation:

i am aslo learning the same

Answer:

A. Negative 17

Step-by-step explanation:

.Let's say you solve an equation like 3x + 5 = x + 7 and your solution is x = 1. How could you check to make sure your answer is correct?

Answers

Answer:

plug in whatever you found for x and see if its equal on both sides.

Step-by-step explanation:

Answer:

To check an answer for an equation, you can substitute the answer you've found in place of the variable you solved it for.

The value of the unknown, x, can be plugged into the equation. You can then compare both sides to see if they are equal.

For your given equation, let's substitute 1 for x in the equation you've given.

3x + 5 = x + 7

3(1) + 5 = 1 +7

Simplify this.

3 + 5 = 8

8 = 8

You know that 8 does equal 8, so your value for x is correct.

I hope this helps you ^^

Good luck :)

In a video game, the chance of rain each day is always 30%. At the beginning of each day in the video game, the computer generates a random integer between 1 and 50. Explain how you could use this number to simulate the weather in the video game.,

Answers

Answer:

I would divide 50 by 4 (Because there are usually 4 weather conditions in game) and whichever the number is closest to it would pick that weather condition

T shirts are on sale: you can either buy 4 shirts for $25.25, or 6 shirts for $43.25. Which is the better deal?
Will mark brainliest if correct!

Answers

basically find the unit price. divide the 4 shirts by 2 and we get 1 shirt for 6.31. the other divide by 6. get 7.2. so the price for 4 shirts is cheaper

can someone pls help me​

Answers

Answer:

2nd option

Step-by-step explanation:

Pls help extra points

Answers

Answer:

4

Step-by-step explanation:

hope it helps

what is 2 times 2..










​

Answers

Answer:

4

Step-by-step explanation:

2x2=4.

Answer:

1,000,000,000 JK its 4

2+2=4

so...

2x2=4

1. Zach asked some classmates which of the
following quick games they preferred.
(See the table.) He recorded the results.
Considering these results, how many of
the next 18 classmates he asked would
you expect to prefer rolling dice?
Favorite Game
shooting marbles
rolling dice
spoons
bingo
flipping coins
Number
8
10
6
G
4
N

Answers

Answer:

8 is your answer plz make me barinly least

How to find 2% of 3000
without a calculator

Answers

Answer:

60%

Step-by-step explanation:

(NO LINKS)Please help I’m begging it been two days I keep sending questions all I been getting is links that hack your device so please help it my last questions the other ones I did by myself!!!

Answers

Answer:

wdym by that what question actually

A random sample of 9th-grade students was asked if they prefer taking notes on a computer or using a paper and pencil. Of the 180 students who were surveyed, 75 said they preferred using the computer. The resulting 99% confidence interval for the proportion of students who prefer taking notes on the computer was (0.322, 0.511). The school newspaper ran a story saying that less than half of the student body prefers taking notes on a computer. Based on the interval, is the newspaper justified in this statement?

Answers

Answer:

NO

Step-by-step explanation:

since the interval contains values above 0.5, it is plausible that more that 50% of students prefer using a computer for notes.

Using the given confidence interval, since it's upper bound is above 50%, the newspaper is not justified in this statement.

What is the interpretation of a x% confidence interval?

It means that we are x% confident that the population parameter(mean/proportion/standard deviation) is between a and b.

Hence, in this problem, we are 99% confident that the proportion is between 0.322 and 0.511. Since the upper bound of the interval is above 50%, there is not enough evidence to say that the proportion is below 50%, hence the newspaper is not justified in this statement.

More can be learned about confidence intervals at https://brainly.com/question/25890103

#SPJ2

What’s is the range of the numbers of employees in these departments

Answers

Answer:

51

Step-by-step explanation:

Range is the highest number the minus lowest number. So 54 - 3 = 51. Hope this helps!

I need help!! Please help me

Answers

18+x+x=180
180-18=162
162/2=81

X=81

Triangles always have a total of 180 degrees and the angles have the same variable which means they are the same number.

18,250 new species are discovered each year on plane earth. how many are found each day? ( giving brainliest )

Answers

Answer:

50 species every day

Step-by-step explanation:

As y increases by 10, x increases by 5.
Which equation represents this rate of
change?

Answers

Answer:

H)  y = 2x

Step-by-step explanation:

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