REVIEW: Probability, Independent/Dependent

Front

What is an independent variable?

Back

An independent variable is a factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What does it mean if two events are independent?

Back

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

Front

What does it mean if two events are dependent?

Back

Two events are dependent if the occurrence of one event affects the probability of the other event occurring.

Front

How do you calculate the probability of a single event?

Back

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

Front

What is the probability of rolling a 3 on a standard number cube?

Back

The probability of rolling a 3 on a standard number cube is 1/6.

Front

What is the probability of rolling a number greater than 4 on a standard number cube?

Back

The probability of rolling a number greater than 4 (5 or 6) is 2/6 or 1/3.

Front

What is the probability of getting heads in a single coin toss?

Back

The probability of getting heads in a single coin toss is 1/2.

Front

What is a spinner in probability?

Back

A spinner is a circular device divided into sections, each representing a different outcome, used to demonstrate probability.

Front

If you spin a spinner with 4 equal sections, what is the probability of landing on any one section?

Back

The probability of landing on any one section is 1/4.