Theoretical and Experimental Probability

Front

What is theoretical probability?

Back

Theoretical probability is the likelihood of an event happening based on all possible outcomes, calculated using the formula: P(Event) = Number of favorable outcomes / Total number of outcomes.

Tags

CCSS.7.SP.C.7A

Front

What is experimental probability?

Back

Experimental probability is the likelihood of an event happening based on the results of an experiment, calculated using the formula: P(Event) = Number of times the event occurs / Total number of trials.

Front

How do you calculate the theoretical probability of landing on yellow if a spinner has 4 equal sections?

Back

The theoretical probability of landing on yellow is 1/4, since there is 1 favorable outcome (yellow) out of 4 total outcomes.

Tags

CCSS.7.SP.C.7A

Front

If a number cube is rolled, what is the theoretical probability of rolling an even number?

Back

The theoretical probability of rolling an even number (2, 4, or 6) is 3/6, which simplifies to 1/2.

Tags

CCSS.7.SP.C.7B

Front

What is the theoretical probability of NOT landing on yellow if a spinner has 4 equal sections?

Back

The theoretical probability of NOT landing on yellow is 3/4, since there are 3 outcomes that are not yellow.

Tags

CCSS.7.SP.C.7B

Front

If a spinner is spun 30 times and lands on blue 12 times, what is the experimental probability of landing on blue?

Back

The experimental probability of landing on blue is 12/30, which simplifies to 2/5.

Tags

CCSS.7.SP.C.6

Front

What is the experimental probability of NOT landing on blue if a spinner is spun 30 times and lands on blue 12 times?

Back

The experimental probability of NOT landing on blue is 18/30, which simplifies to 3/5.

Tags

CCSS.7.SP.C.6

Front

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

Back

A probability of 1 means that the event is certain to occur.

Tags

CCSS.7.SP.C.5

Front

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

Back

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

Tags

CCSS.7.SP.C.5

Front

How can you express probability as a fraction?

Back

Probability can be expressed as a fraction by dividing the number of favorable outcomes by the total number of possible outcomes.

Tags

CCSS.7.SP.C.7A