Predictions and 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.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is a whole number?

Back

Whole numbers are non-negative numbers without fractions or decimals, including 0, 1, 2, 3, and so on.

Front

How do you calculate the expected number of occurrences?

Back

To calculate the expected number of occurrences, use the formula: (Number of favorable outcomes / Total outcomes) x Total number of trials.

Front

What is the probability of an event not occurring?

Back

The probability of an event not occurring is calculated as 1 minus the probability of the event occurring.

Front

If there are 10 cookies: 5 chocolate chip, 3 sugar, and 2 oatmeal, what is the probability of choosing a sugar cookie?

Back

The probability of choosing a sugar cookie is 3/10.

Front

What does it mean for an event to be 'more likely'?

Back

An event is 'more likely' if its probability is greater than 0.5.

Front

What is a sample space in probability?

Back

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

Front

If a bag contains 5 red balls and 3 blue balls, what is the probability of drawing a red ball?

Back

The probability of drawing a red ball is 5/8.

Front

What is a favorable outcome?

Back

A favorable outcome is an outcome that is considered successful for the event being measured.