Simple Probabilities

The following M & M colors are in the bowl: 4 yellow, 6 orange, 3 green, 5 blue, 2 brown What is the probability of selecting a brown candy?

• 2/18

• 1/9

• 1/10

An automobile dealer decides to select a month for its annual sale.  Find the probability that it will be September or October.

• 1/12

• 1/6

• 1/4

• 5/6

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people.  If a person is selected at random, find the probability that the person is either a lifeguard or a manager.

• 2/3

• 8/15

• 2/15

• not enough information

In a statistics class there are 18 juniors and 10 seniors;  6 of the seniors are females, and 12 of the juniors are males.  If a student is selected at random, find the probability of selecting a junior or a female.

• 24/28

• 12/28

• 18/28

• 6/28

What is the probability of rolling an even number on a die?

• 0.25

• 0.5

• 0

• 1

Probability can only be values between which two numbers?

• 0 to 2

• 0 to 10

• 0 to 5

• 0 to 1

Find the probability of rolling greater than a 1 on a single die.

• 6/6

• 5/6

• 4/6

• 1/6

What is an event that will happen or has a probability of 1?

• theoretical

• probability

• mutually exclusive

• certain

an event with a probability of zero

• impossible

• mutually exclusive

• outcome

• outcome

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 6

• 5/6

• 1/3

• 5/11