Probability

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, where 0 means the event cannot happen and 1 means the event is certain.

Front

What is a sample space?

Back

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

Front

How do you calculate the total number of outcomes when making choices?

Back

Multiply the number of choices for each option. For example, if there are 3 colors and 2 styles, the total outcomes = 3 x 2 = 6.

Front

What is the probability of an event?

Back

The probability of an event is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

If a coin is tossed, what are the possible outcomes?

Back

The possible outcomes are Heads (H) and Tails (T).

Front

What is the probability of tossing a coin and getting Heads?

Back

The probability is 1/2, since there are 2 possible outcomes (H and T).

Front

How many outcomes are there when rolling a single die?

Back

There are 6 outcomes when rolling a single die: 1, 2, 3, 4, 5, and 6.

Front

What is the probability of rolling a 3 on a single die?

Back

The probability is 1/6, since there is 1 favorable outcome (rolling a 3) out of 6 possible outcomes.

Front

What is a compound event in probability?

Back

A compound event is an event that involves two or more simple events. For example, tossing a coin and rolling a die.

Front

How do you find the probability of independent events occurring together?

Back

Multiply the probabilities of each independent event. For example, P(A and B) = P(A) x P(B).