Probability

Front

What is Probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Tags

CCSS.7.SP.C.5

Front

What is Experimental Probability?

Back

Experimental Probability is the probability based on the actual results of an experiment, calculated as the number of times an event occurs divided by the total number of trials.

Front

How do you calculate the total number of outfits possible with different clothing items?

Back

Multiply the number of options for each clothing item. For example, with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes, the total outfits = 5 * 8 * 2 = 80.

Front

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

Back

Probability of an event = Number of favorable outcomes / Total number of possible outcomes.

Tags

CCSS.7.SP.C.7A

Front

What does a probability of 0 mean?

Back

A probability of 0 means that the event 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 to occur.

Tags

CCSS.7.SP.C.5

Front

If a bag contains 3 red jelly beans and 7 blue jelly beans, what is the probability of picking a red jelly bean?

Back

Probability = Number of red jelly beans / Total jelly beans = 3 / (3 + 7) = 3/10.

Tags

CCSS.7.SP.C.7B

Front

What is the difference between theoretical probability and experimental probability?

Back

Theoretical probability is based on expected outcomes, while experimental probability is based on actual outcomes from experiments.

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

What is the probability of rolling a 3 on a standard six-sided die?

Back

Probability = Number of favorable outcomes (1) / Total outcomes (6) = 1/6.

Tags

CCSS.7.SP.C.7A