Math Cafe Statistics and Probability

Emma is playing a spinning game using the spinner shown. She gets one spin and needs green to win. What's probability that she will NOT win?

• .25

• .75

• .70

• 40

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11

• 5/6

• 1/3

• 5

• A

• B

• C

• D

Calculate the mean of the following set of numbers: 3, 7, 7, 10, 12.

• 7

• 7.8

• 8

• 9

A box contains 3 red balls and 2 blue balls. If two balls are drawn at random, what is the probability that both are red?

What is the probability of rolling a 6 on a fair six-sided die?

If a jar contains 10 white, 5 red, and 15 blue marbles, what is the probability of drawing a red marble?

A fair die is rolled twice. What is the probability of getting a sum of 9?

Calculate the median of the following set of numbers: 3, 7, 9, 12, 14.

• 7

• 9

• 12

• 14

A bag contains 5 red balls and 3 green balls. If two balls are drawn at random, what is the probability that both are green?