CP Math- Prob and Stats Exam Review

A survey was conducted to determine sports participation at Shelby Middle School. 100 student athletes were surveyed, and their summarized responses can be seen in this table. Of the people who played football, what percent were female?

• 39%

• 52%

• 25%

• 33%

A jar contains 5 yellow and 2 purple marbles. If two marbles are drawn from the jar without replacement, what is the probability that both will be yellow?

• 35%

• 51%

• 48%

• 138%

A jar contains 4 blue marbles, 5 red marbles, and x green marbles. If the probability of drawing a red marble is 20%, how many green marbles are there in the bag?

• 15

• 16

• 18

• 20

Kasey has 10 pencils, 2 pens, and x highlighters in his backpack. If the probability of removing a random item from his backpack and getting a pencil is 50%, how many highlighters does she have?

• 4

• 5

• 8

• 10

A hockey player scored the following points per game: 42, 35, 29, 42, 33, 36, 26, 38, 42, 47, 51, 33, 30, and 40. What was the median number of points scored by the player in the 14 games?

• 30

• 36

• 37

• 38

Terrance's monthly electrical bills for last year were as follows: $40, $38, $38, $38, $34, $34, $30, $32, $34, $37, $39, and $40. What is the mode of the bills?

• 34

• 34, 38

• 34. 34, 38, 40

• 38

The average of 5 packages is 8.4 pounds. Four of the packages weight 4 pounds or more. What is the greatest possible weight of the fifth package?

• 8.4

• 17.6

• 26.0

• 28.4

If the average of x, 2x, 5x, and 50 is 50, then x =

• 6
• 19

• 10
• 30

A group of 15 students took a test that was scored from 0 to 100. If 10 students scored 75 or above, what is the lowest possible average of all 15 students?

• 50

• 55

• 60

• 65

The average of Gwen's 4 tests were 92. If the average of her scores on the first 2 tests was 85, what was her average on the other two tests?

• 94

• 92

• 96

• 99