Independent & Dependent Events

Front

What is an independent event?

Back

An independent event is an event whose outcome is not affected by the outcome of another event. For example, flipping a coin and rolling a die are independent events.

Front

What is a dependent event?

Back

A dependent event is an event whose outcome is affected by the outcome of another event. For example, drawing a card from a deck without replacement is a dependent event.

Front

If Sam asks 20 people their favorite movie and then asks one more person, is this an independent or dependent event?

Back

Independent event.

Front

If Gina buys a shirt and then her friend buys a shirt at the same store, are these events independent or dependent?

Back

Dependent event.

Front

What happens when Clara picks a drink at random, puts it back, and then picks another drink? Are these events independent or dependent?

Back

Independent.

Front

If John picks a marble from a bag, puts it on the desk, and then picks another marble from the same bag, are these events independent or dependent?

Back

Dependent.

Front

When Pablo rolls a die three times, are these events independent or dependent?

Back

Independent.

Front

Give an example of two independent events.

Back

Flipping a coin and rolling a die.

Front

Give an example of two dependent events.

Back

Drawing two cards from a deck without replacement.

Front

What is the probability of independent events occurring together?

Back

The probability of independent events occurring together is the product of their individual probabilities.