Probabilities

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, or as a percentage.

Tags

CCSS.7.SP.C.5

Front

What does a probability of 0 mean?

Back

A probability of 0 means that the event is impossible and will not occur.

Tags

CCSS.7.SP.C.5

Front

What does a probability of 1 mean?

Back

A probability of 1 means that the event is certain and will definitely occur.

Tags

CCSS.7.SP.C.5

Front

What is the formula for calculating probability?

Back

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

Tags

CCSS.7.SP.C.7A

Front

What is theoretical probability?

Back

Theoretical probability is the probability calculated based on the possible outcomes in a perfect scenario.

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What is experimental probability?

Back

Experimental probability is the probability calculated based on the actual results of an experiment.

Front

If a spinner is divided into 8 equal parts, what is the probability of landing on one specific part?

Back

P(specific part) = 1/8.

Tags

CCSS.7.SP.C.7A

Front

If a spinner is divided into 8 equal parts and 5 are white, what is the probability of landing on white?

Back

P(white) = 5/8.

Tags

CCSS.7.SP.C.7B

Front

What is the probability of drawing a 10 from a standard deck of 52 cards?

Back

P(drawing a 10) = 4/52 = 1/13.

Tags

CCSS.7.SP.C.7B

Front

What does it mean if an event is described as 'unlikely'?

Back

An event is described as 'unlikely' if its probability is less than 50%.

Tags

CCSS.7.SP.C.5