Probability/ Two Way Tables

How many total did not attend the school play?

• 63

• 15

• 78

• 221

How many total have an MP3 player?

• 13

• 57

• 70

• 100

The teacher surveys her students to determine how many own a cell phone. She also records what gaming system they own. What is x in this table?

• 21

• 22

• 43

• 100

A bag has 3 red, 5 blue, and 2 yellow pieces of candy. What is the probability of  drawing a blue piece of candy?

• ¹/₂
• ¹/₁₀
• ³/₁₀
• ¹/₃

A spinner consists of two A’s, three B’s, and three C’s. What is the probability of  spinning a B?

• ²/₈
• ²/₃
• ³/₈
• ¹/₄

• 1/2
• 1/8
• 1/3
• 1/12

• 1/2
• 1/4
• 3/8
• 3/16

Two marbles are randomly drawn from a bag containing 3 purple, 1 blue, and 1 yellow marble. The first marble is blue and is not replaced. Find the probability of drawing a second marble that is purple. 

• 3/5
• 3/4
• 3/20
• 2/5

Given that a student selected at random ate breakfast, find the probability that the student was a girl.

• 55%

• 38%

• 15%

• 75%

Out of those surveyed, what is the probability that the student is a boy who can't bike to school ?

• 4/30

• 7/30

• 4/14

• 14/30