Independent & Dependent Events

Front

What are independent events?

Back

Independent events are events where the outcome of one event does not affect the outcome of another event.

Front

What are dependent events?

Back

Dependent events are events where the outcome of one event affects the outcome of another event.

Front

If a red marble is drawn and not replaced, what type of event is drawing a second marble?

Back

Dependent event.

Front

If a marble is drawn and replaced before drawing another, what type of event is this?

Back

Independent event.

Front

What is the probability of rolling an even number on a number cube?

Back

3/6 or 1/2.

Front

What is the probability of rolling an odd number on a number cube?

Back

3/6 or 1/2.

Front

What is the combined probability of rolling an even number first and an odd number second?

Back

1/4.

Front

If two events are independent, how do you find the probability of both occurring?

Back

Multiply the probabilities of each event.

Front

If two events are dependent, how do you find the probability of both occurring?

Back

Multiply the probability of the first event by the probability of the second event given the first.

Front

Example of independent events: Drawing a card and rolling a die. Why are they independent?

Back

The outcome of drawing a card does not affect the outcome of rolling a die.