Math Probability Unit Review

A box contains 6 sugar cookies, 2 peanut butter cookies, and 7 chocolate chip cookies. What is the probability of picking a a sugar cookie from the box?

• 40%

• 25%

• 60%

• 84%

Suppose ten tosses of a coin were all heads. If you switch to a new coin, what is the probability that the next coin toss will result in another head?

• 1/1024

• 1/11

• 1/6

• 1/2

Jacob rolled a fair number cube 75 times. He rolled a three 20 times. What is the experimental probability of rolling a three?

• 1/5

• 3/25

• 13/20

• 4/15

Sammy spun a spinner with five congruent sections 125 times. The results are shown below.

Blue: 15

Green: 26

Yellow: 39

Red: 20

Orange: 25

What is the experimental probability of spinning orange?

• 35%

• 25%

• 50%

• 20%

What is the probability of flipping a coin twice and getting two heads?

What is the probability of selecting a prime number from the set {2, 3, 4, 5, 6, 7, 8, 9}?

What is the probability of drawing a red card from a standard deck of 52 playing cards?

Tyler is doing an experiment in which he rolls a six-sided number cube numbered 1-6 and flips a coin. Which list shows all possible outcomes that include a number greater than 3?

• (1 , heads), (2 , heads), (3 , heads), (4 , tails), (5 , tails), (6 , tails)

• (1 , heads), (2 , heads), (3 , heads), (4 , heads), (5 , heads), (6 , heads), (1 , tails), (2 , tails), (3 , tails), (4 , tails), (5 , tails), (6 , tails)

• (4 , heads), (4 , tails), (5 , heads), (5 , tails), (6 , heads), (6, tails)

• (4 , 5 , 6) , (heads , tails)

Given the number cube and spinner shown, how many possible outcomes are there if you roll the number cube once and spin the spinner once?

• 24

• 10

• 6

• 4

A box of lollipops contains 4 strawberry lollipops, 3 sour apple lollipops, 2 grape lollipops, and 1 blue raspberry lollipop. Your friend randomly selects a lollipop and does not replace it. Then you randomly select a lollipop. What is the probability that your friend will get a strawberry lollipop and you will get a sour apple lollipop?

• 3/25

• 2/7

• 1/5

• 2/15