Probability - Theoretical Review 1

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.

Front

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

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes)

Front

If you have 2 red, 4 blue, and 5 yellow marbles, what is the total number of marbles?

Back

Total marbles = 2 + 4 + 5 = 11.

Front

What is the probability of picking a yellow marble from a bag with 2 red, 4 blue, and 5 yellow marbles?

Back

Probability = 5/11.

Front

How do you convert a probability to a percentage?

Back

Multiply the probability by 100.

Front

What is the probability of picking a blue marble from a bag with 7 red, 10 blue, and 3 yellow marbles?

Back

Probability = 10/20 = 0.50.

Front

What is an outcome in probability?

Back

An outcome is a possible result of a probability experiment.

Front

How many outcomes are there when flipping a coin and rolling a six-sided die?

Back

There are 2 (coin) x 6 (die) = 12 outcomes.

Front

What is the probability of picking a red marble from a bag with 4 red, 6 blue, and 2 yellow marbles?

Back

Probability = 4/12 = 1/3.

Front

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

Back

It means the event is impossible and will not occur.