Probability

Front

The probability of an event is _______________

Back

The likelihood that event will occur.

Front

What is the formula for calculating the probability of an event?

Back

P(Event) = \frac{Favorable Outcomes}{Total Outcomes}

Front

What are mutually exclusive events?

Back

Events that cannot occur at the same time.

Front

What is the probability of selecting an orange candy if there are 100 candies and 100 are orange?

Back

100%.

Front

If P(A) = \frac{1}{4} and P(B) = \frac{1}{2}, what is P(A ∩ B) if A and B are independent?

Back

P(A ∩ B) = P(A) * P(B) = \frac{1}{4} * \frac{1}{2} = \frac{1}{8}.

Front

What is the probability of an event not occurring?

Back

P(not Event) = 1 - P(Event).

Front

If the probability of rain is 0.3, what is the probability that it will not rain?

Back

P(not rain) = 1 - 0.3 = 0.7.

Front

What does it mean if two events are not mutually exclusive?

Back

They can occur at the same time.

Front

What is the probability of rolling a 3 on a fair six-sided die?

Back

P(rolling a 3) = \frac{1}{6}.

Front

If there are 5 red balls and 3 blue balls in a bag, what is the probability of picking a red ball?

Back

P(red) = \frac{5}{8}.