Probability Review

If there are 4 red, 6 blue, 3 green and 2 yellow marbles in a bag, What is the probability of choosing a green marble? Reduce to the lowest possible fraction.

• 4/15

• 1/5

• 3/10

• 1/3

Use the spinner provided. What is the probability of landing on a red or green space? Reduce to the lowest possible fraction.

• 1/8

• 1/6

• 3/4

• 2/3

A point-guard on your school's basketball team keeps track of her shots. The probability that she makes her three point shots is 1/3. Suppose she gets 15 attempts. How many three point shots would you expect her to make

• 5

• 3

• 2

• 10

A greenhouse manager knows, from experience, that the probability of a plant surviving the winter is 40%. If her greenhouse has 20 plants, how many plants can she expect to survive the winter? *

• 8

• 12

• 15

• 18

Fernando was car shopping. He noticed there were 10 red, 6 blue, 3 white, and 1 silver car in the lot. What is the probability that Fernando will NOT choose a white car? Reduce your answer to the lowest fraction.

• 3/10

• 3/20

• 17/20

• 7/10

In a box of mixed Legos, there are 3 red pieces, 1 blue pieces, 1 green piece, and 2 yellow pieces. What is the probability of choosing a yellow piece, putting it back and then choosing a blue piece?

• 2/49

• 3/7

• 2/7

• 3/49

Use the menu. How many total possible outcomes will there be if one of each category is chosen?

• 9

• 12

• 18

• 24

• 3

• 18

• 12

• 9

Joe is choosing an outfit for today. Use the table to find all the possible outcomes he could have in his outfit choice.

• 6

• 7

• 8

• 12

Use the picture. What is the probability of landing on an even number and choosing a striped marble? Reduce to the lowest possible fraction.

• 2/7

• 1/5

• 6/14

• 3/10