Probability and Likelihood

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people.  If a person is selected at random, find the probability that the person is either a lifeguard or a manager.

• 2/3
• 8/15
• 2/15
• not enough information

Tags

CCSS.HSS.CP.B.7

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.8

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11
• 5/6
• 1/3
• 5

Tags

CCSS.7.SP.C.7B

• Certain
• Likely
• Unlikely
• Impossible

Tags

CCSS.7.SP.C.5

• Certain
• Likely
• Unlikely
• Impossible

Tags

CCSS.7.SP.C.5

• Certain
• Likely
• Unlikely
• Impossible

Tags

CCSS.7.SP.C.5

A bag has 3 red marbles, 2 blue and 4 yellow. What is theprobability of pulling a orange?

• certain
• impossible 
• unlikely 
• equally likely 

Tags

CCSS.7.SP.C.5

What is the probability of spinning green?

• impossible
• unlikely
• very likely 
• equally likely 

Tags

CCSS.7.SP.C.5

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

Tags

CCSS.7.SP.C.5