Probability Simple Events

A jar contains 3 red marbles, 2 blue marbles, and 5 green marbles. What is the probability of picking a red marble?

• 3/10

• 2/5

• 1/3

• 1/2

Tags

CCSS.7.SP.C.7B

There are 15 girls and 15 boys in 8th period. If Terry randomly selects a member of 8th period, what is the probability that she will select a boy?

• 15/15

• 1/2

• 15/40

• 8/15

Tags

CCSS.7.SP.C.7B

What is the probability the spinner stops on yellow?

• .05

• 50%

• 25%

• 3/8

Tags

CCSS.7.SP.C.7A

A die is rolled. What is the probability that the result is less than 3 ?

• 1/2
• 1/3
• 1/4
• 1/6

Tags

CCSS.7.SP.C.7A

The spinner shown is spun. 
Find P(number less than 6).

• ⁶/₈ or 75%
• ¹/₈ or 12.5%
• ⁵/₈ or 62.5%
• ³/₈ or 37.5%

Tags

CCSS.7.SP.C.7B

What is the probability of spinning red?

• 0

• 5/12

• 1/2

• 3/4

Tags

CCSS.7.SP.C.7B

Rolling a 15 on a number cube is

• Impossible

• Certain

• Unlikely

• Equally Likely

Tags

CCSS.7.SP.C.5

Earl Darenz is asked to choose a day from a week. What is the probability of choosing a day which starts with S.

• 1/7

• 2/7

• 2/3

• 1/3

Tags

CCSS.7.SP.C.7A

The sides of a cube are numbered 11 to 16. If Angela rolled the cube once, what is the probability of rolling a composite number?

• 1/2

• 1/4

• 2/3

• 3/4

Of the 45 students in a class, 25 are boys. If a student is selected at a random for a field trip, what is the probability of selecting a girl?

• 3/8

• 4/5

• 2/7

• 4/9

Tags

CCSS.7.SP.C.7B