PRACTICE Find Probabilities of Compound and Simple Events

Front

What is the probability of getting exactly zero tails when tossing a fair coin three times?

Back

The probability is \frac{1}{8}.

Front

What is the probability that Marc wins one of the tickets if he has a 40% chance?

Back

The probability is 40%.

Front

If the probability of rain today is 20%, what is the probability that it will not rain?

Back

The probability that it will not rain is 80%.

Front

What is a compound event in probability?

Back

A compound event is an event that consists of two or more simple events.

Front

If the probability of scoring a goal is 60%, what is the probability of missing?

Back

The probability of missing is 40%.

Front

Define a simple event in probability.

Back

A simple event is an event that consists of a single outcome.

Front

What is the total number of outcomes when tossing a fair coin three times?

Back

The total number of outcomes is 2^3 = 8.

Front

How do you calculate the probability of an event?

Back

Probability is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the probability of getting at least one tail when tossing a fair coin three times?

Back

The probability of getting at least one tail is 1 - P(exactly zero tails) = 1 - \frac{1}{8} = \frac{7}{8}.

Front

What is the relationship between the probability of an event and its complement?

Back

The sum of the probabilities of an event and its complement is always 1.