Prob & Stats Review

Question 1

What measure of center and spread should you use to describe the data?

Accepted Answer

median and IQR

Question 2

What is the most popular dog in the US?

Accepted Answer

Labrador Retriever

Question 3

What is P(female | no sports)?

Accepted Answer

58%

Question 4

What happens to the median of a data set if I only change the highest number from 120 to 160?

Accepted Answer

median stays the same

Question 5

On a 6-sided die, what is the probability of rolling a 3?

Accepted Answer

16.7%

Question 6

A vet clinic has: 16 dogs, 9 cats, 4 hamsters, 3 ducks. What is P(cat or hamster)?

Accepted Answer

40.6%

Question 7

On a 6-sided die, what is the probability of rolling a 4 or 6?

Accepted Answer

33.3%

Question 8

What is P(sports | male)?

Accepted Answer

40%

Question 9

What happens to the mean of a data set if I change the lowest number from 10 to 5?

Accepted Answer

mean decreases

Question 10

16 dogs, 9 cats, 4 hamsters, 3 ducks. Choose 2pets to go in clinic, what is P(cat then duck)?

Accepted Answer

2.72%

Question 11

Describe the scatterplot

Accepted Answer

strong, negative

Question 12

There are 3 blue MMS, 8 red MMs, 10 brown MMs, 6 green MMs. What is P(blue or green)?

Accepted Answer

33.3%

Question 13

If Beyoncé released 160 out of 182 songs she wrote, how likely is she to release the next song?

Accepted Answer

87.9%

Question 14

Find the median and mean: 12, 15, 8, 19, 24, 15, 19, 20, 13

Accepted Answer

median: 15, mean: 16.11

Question 15

What is Oklahoma's state vegetable?

Accepted Answer

Watermelon

Questions 15