Probability Fair

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 does it mean for events to be mutually exclusive?

Back

Mutually exclusive events are events that cannot occur at the same time. If one event occurs, the other cannot.

Front

How do you calculate the probability of a single event?

Back

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

Front

What is the probability of selecting an orange candy if there are 4 orange candies out of 4 total candies?

Back

100% or 1, since all candies are orange.

Front

What is the probability of spinning green if there are 1 green section out of 4 total sections?

Back

1/4, since there is 1 favorable outcome out of 4 possible outcomes.

Front

How do you express a decimal as a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign.

Front

What is the probability of an event that is certain to happen?

Back

The probability of an event that is certain to happen is 1 or 100%.

Front

What is the probability of an event that is impossible?

Back

The probability of an impossible event is 0.

Front

If the probability of event A is 0.3 and the probability of event B is 0.5, what is the probability of either A or B occurring if they are mutually exclusive?

Back

The probability of either A or B occurring is 0.3 + 0.5 = 0.8.

Front

What is conditional probability?

Back

Conditional probability is the probability of an event occurring given that another event has already occurred.