Basic Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1.

Tags

CCSS.7.SP.C.5

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.

Tags

CCSS.7.SP.C.5

Front

What does it mean if an event has a probability of 1?

Back

It means the event is certain and will definitely occur.

Tags

CCSS.7.SP.C.5

Front

What is the formula for calculating the probability of an event A?

Back

P(A) = Number of favorable outcomes / Total number of possible outcomes.

Tags

CCSS.7.SP.C.7A

Front

What is the probability of an event not occurring?

Back

P(not A) = 1 - P(A).

Front

If a die is rolled, what is the probability of rolling a 3?

Back

P(rolling a 3) = 1/6.

Tags

CCSS.7.SP.C.7A

Front

If there are 3 red balls and 2 blue balls in a bag, what is the probability of picking a blue ball?

Back

P(blue) = 2/5.

Tags

CCSS.7.SP.C.7B

Front

What is the probability of landing on a color that is not present in a spinner with red, blue, and yellow?

Back

P(not present color) = 0.

Tags

CCSS.7.SP.C.5

Front

If a coin is flipped, what is the probability of getting heads?

Back

P(heads) = 1/2.

Tags

CCSS.7.SP.C.7A

Front

What is the probability of choosing a popsicle at random and getting either a blue or a green?

Back

P(blue or green) = 1/3.

Tags

CCSS.HSS.CP.B.7