Unit 1 - Mid Unit 2 Review AP Stats

Question 1

According to your model, how many tricks do you expect a dog to have learned after being in the class for 1.5 months?

Accepted Answer

About 3, About 4

Question 2

In which year did they score better?

Accepted Answer

The student scored equally well on both exams

Question 3

What type of correlation describes the following sentence:

Accepted Answer

negative

Question 4

A random sample of 25 birthweights is taken yielding the following summary statistics. The number of outliers is...

Accepted Answer

At least 1 upper AND 1 lower

Question 5

In which distribution(s) would you be likely to find the mean and median are the same?

Accepted Answer

A, B, and C

Question 6

Describe the strength and direction of the correlation.

Accepted Answer

moderate positive

Question 7

What happens to the summary statistics?

Accepted Answer

mean 100, SD 18

Question 8

Model the data with a line of best fit on your calculator. What is the equation?

Accepted Answer

tricks =1.66 + 1.4(months)

Question 9

Of the mechanical engineers, what is the probability that math is their favorite subject?

Accepted Answer

52%

Question 10

95% of women had their first child between...

Accepted Answer

16.5 years and 38.1 years

Question 11

Interpret the y-intercept in context.

Accepted Answer

At 0 months of training, the dog is expected to know 1.66 tricks.

Question 12

Which graph has the smallest standard deviation?

Accepted Answer

B

Question 13

Interpret the slope in context

Accepted Answer

For each 1 month increase, the number of tricks learned increases by 1.4.

Question 14

About 20% of these men are taller than...

Accepted Answer

70 inches

Question 15

What is the conditional distribution of individuals with high blood pressure for the "Under 30" age group?

Accepted Answer

23.5%

Question 16

If the standard deviation of a distribution is 4, the variance is:

Accepted Answer

16

Questions 16