Opener 3/31

An event that consists of two or more events

•  event
• dependent events
• experiment
• compound event

What is the probability of choosing a red marble?

• 9 out of 20

• 5 out of 20

• impossible

Tags

CCSS.7.SP.C.7B

Find the probability of each set of independent events.

Flipping a tail on a coin and spinning NOT a 5 on a spinner with sections of equal area numbered 1-5.

Simplify.

• 1/2

• 1/7

• 2/5

• 1/10

Tags

CCSS.HSS.CP.B.7

If A and B are overlapping events, then P(A or B) equals

• P(A) + P(B) - P(A and B)

• P(A and B)

• P(A) x P(B)

• P(A) + P(B)

Tags

CCSS.HSS.CP.B.7

What is P(K or 5)?

Tags

CCSS.HSS.CP.B.7

Tags

CCSS.7.SP.C.7A

A bag contains 9 green marbles, 5 yellow marbles and 6 red marbles.  You choose one marble.   What is the probability of selecting a green or red marble?

• 8/15
• 6/11
• 3/4
• 2/3

A bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles. Mrs. Cox picks one without looking, replaces it and picks another one. What is the probability that she picks two that are not orange? 

• 9/16
• 3/4
• 9/144
• 5/16

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

A standard die is rolled twice. Find each probability.

P (odd both times)

• 1/2

• 1/4

• 2/3

• 1/9