May 28: Probability

Probability is ...

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

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

A regular 6-sided die is to be rolled one time. What is the probability that the number 5 is rolled?

• 1/5

• 5/6

• 1/6

• 6/5

A regular 6-sided die is to be rolled once. What is the probability that a number less than 3 is rolled?

• 1/3

• 1/6

• 1/2

• 2/3

A regular 6-sided die is to be rolled once. What is the probability that a number less than or equal to 4 is rolled?

• 1/2

• 1/4

• 5/6

• 2/3

There are 3 red marbles, 4 blue marbles, 2 green marbles, and 6 clear marbles in a burlap bag. One marble is randomly pulled from the bag. What is the probability the marble was green?

• 1/2

• 1/7

• 2/15

• 2/17

Is it likely, less likely, certain or impossible to select a red marble from a box of 12 red marbles?

• likely
• less likely
• certain
• impossible

Which color marble is least likely to be pulled from the jar?

• Green 
• Red
• Blue
• Yellow

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%