Probability review 2

Front

What is the formula to calculate combinations when selecting items?

Back

The formula for combinations is given by: C(n, r) = \frac{n!}{r!(n-r)!}, where n is the total number of items, and r is the number of items to choose.

Front

How many different ways can you choose 3 flavors from 6 ice cream flavors?

Back

Using the combination formula: C(6, 3) = \frac{6!}{3!(6-3)!} = 20.

Front

What is the probability of an event?

Back

The probability of an event is a measure of the likelihood that the event will occur, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the probability of drawing a red marble if there are 3 red marbles and 7 other marbles?

Back

The probability is \frac{3}{10}.

Front

How do you calculate the probability of multiple independent events occurring?

Back

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

Front

What is the probability of rolling a six on a 1-6 number cube?

Back

The probability is \frac{1}{6}.

Front

What is the probability of rolling an odd number on a 1-6 number cube?

Back

The probability is \frac{3}{6} = \frac{1}{2}.

Front

If the probability of an event is 1, what does that mean?

Back

It means that the event is certain to occur.

Front

If the probability of an event is 0, what does that mean?

Back

It means that the event is impossible and will not occur.

Front

What is the total number of fish Sam has caught if he caught 3 bluegill, 4 catfish, 7 bass, and 2 carp?

Back

Total fish = 3 + 4 + 7 + 2 = 16.