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Dimas [21]
3 years ago
11

StatTutor: Population versus sample Officials of a major university want to know what percent of their students recycle paper. T

hey randomly sample 200 students to find out. What is the variable being measured on each student?
Mathematics
1 answer:
love history [14]3 years ago
3 0

Answer:

Whether the student recycle the paper or not.

Step-by-step explanation:

We are given the following in the question:

Officials of a major university want to know what percent of their students recycle paper.

A random sample of sample size 200 is taken.

We have to find the variable that is measure on each student of the sample.

Variable of measurement on each student:

Whether the student recycle the paper or not.

The student will reply a yes or no as an answer.

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What is a first step to isolate the variable ?btw it’s for iready lol
kirza4 [7]

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The first step would be to multiply 2x - 1 by 6, which would be 12x - 6 .

5 0
2 years ago
Read 2 more answers
Components of a certain type are shipped to a supplier in batches of ten. Suppose that 50% of all such batches contain no defect
ad-work [718]

Answer:

a) P (0 defective component) = 0.5

   P( 1 defective component ) = 0.35

    P( 2 defective component ) = 0.15

b) P( 0 ) = 0

   p ( 1 ) =  1

   p ( 2 ) = 0.33

Step-by-step explanation:

p( no defective ) = 0.5

p( 1 is defective ) = 0.35

p( 2 is defective ) = 0.15

Given that 2 components are selected at random

<u>a) Given that neither component is defective </u>

Probability of 0 defective component = 0.5

P( 1 defective component ) = 0.35

P( 2 defective component ) = 0.15

<u>b) Given that one of the two tested component is defective </u>

P( 0 defective ) = 0

P( 1 defective ) = P ( \frac{x=1}{x\geq 1} ) = p( x = 1 ) / 1 - P ( x = 0 )

                                        = ( 0.5 )^1 ( 0.5 )^0 /  1 - ( 0.5)^0 (0.5)^1

                                        = 0.5 * 1 / 1 - 0.5 = 0.5 / 0.5 =  1

p ( 2 defective ) = p( x = 3 ) / 1 - P ( x = 0 )

                         = ( 0.5 )^2 ( 0.5 )^0 /  1 - ( 0.5)^0 (0.5)^2

                         = 0.25 / 0.75 = 0.33

<u />

5 0
2 years ago
Is (x + 5) a factor of f(x) = x3 − 4x2 + 3x + 7?
Vaselesa [24]

Answer:

Step-by-step explanation:

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3 years ago
90 juniors took different SAT-II tests. 40% more students took the Chemistry test than took the History test, and 50% more stude
erastovalidia [21]

Answer:


Step-by-step explanation:

4.5x=90

x=20 history

28 chemistry

42 math

They add to 90.  


History test=x

Chemistry test=1.4x

Math test=(1.5)(1.4)=2.1x

They add to 90

4 0
2 years ago
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