Flashcard 5B.2 (Multiplication and Addition Rules of Probability)

Front

What is the probability of getting tails when flipping a coin?

Back

1/2

Front

If you flip a coin three times, what is the probability that all flips will land on tails?

Back

1/8

Front

What is the probability that it will NOT rain if the probability of rain is 30%?

Back

70%

Front

How do you calculate the probability of choosing a black marble from a bag containing 4 black and 2 white marbles?

Back

P(Black) = 4/(4+2) = 4/6 = 2/3

Front

What is the probability of choosing a black marble, not replacing it, and then choosing a white marble?

Back

4/15

Front

What is the probability of drawing a spade or a red card from a standard deck?

Back

P(Spade or Red) = P(Spade) + P(Red) = 1/4 + 1/2 = 3/4

Front

Are the events of drawing a spade and a red card inclusive or mutually exclusive?

Back

Mutually exclusive

Front

What does it mean for two events to be independent?

Back

The outcome of one event does not affect the outcome of the other.

Front

In the context of probability, what is a dependent event?

Back

The outcome of one event affects the outcome of another.

Front

If you draw one piece of candy from a jar, replace it, and then draw again, are the events independent or dependent?

Back

Independent