Probability Review

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.

Front

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

Back

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

Front

What is theoretical probability?

Back

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

Front

What is experimental probability?

Back

Experimental probability is the probability determined by conducting an experiment and observing the outcomes.

Front

If a bag contains 3 red marbles, 2 blue marbles, and 4 yellow marbles, what is the total number of marbles?

Back

Total marbles = 3 (red) + 2 (blue) + 4 (yellow) = 9 marbles.

Front

What is the probability of drawing a blue marble from a bag containing 3 red, 2 blue, and 4 yellow marbles?

Back

P(blue) = Number of blue marbles / Total marbles = 2/9.

Front

What does it mean if an event is independent?

Back

Two events are independent if the occurrence of one does not affect the probability of the other.

Front

What is the probability of NOT rolling a 6 on a fair die?

Back

P(NOT 6) = 5/6, since there are 5 outcomes that are not 6.

Front

What is a sample space?

Back

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

Front

What is the probability of spinning a green section on a spinner divided into 4 equal parts: red, blue, green, and yellow?

Back

P(green) = 1/4.