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

• 5/11
• 5/6
• 1/3
• 5

What is the probability of flipping a coin and getting heads?

• 1/2
• 1/3
• 1/4
• Never, Tails never fails.

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%
• 70%
• 100%
• 0%

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%

Is the spinner more likely or less likely to land on green than yellow?

• more likely
• less likely

What is the probability of drawing a red card from a standard deck of cards?

• 1/52
• 13/52
• 1/2
• 4/52

What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?

• 1/7
• 7/20
• 7/10
• 3/10

What is the probability of selecting a piece of cherry candy?

• 1 out of 4

• 3 out of 3

• 3 out of 9

• 4 out of 10