Sample Spaces and Probability

Find the probability that a student chosen at random has a GPA of at least 3.0

• 0.25

• 0.19

• 0.44

• 0.32

Find the probability that a student chosen at random has a GPA between 1.0 and 2.9, inclusive.

• 0.09

• 0.41

• 0.26

• 0.50

A bag contains 40 marbles. There are an equal amount of red, yellow, blue and black marbles. What is the probability of drawing 1 red marble from the bag?

When two six-sided dice are rolled there are 36 outcomes. Find the probability that the sum is NOT 4.

Tell whether the statement is always, sometimes, or never true:

The experimental probability of an event occurring is equal to the theoretical probability of an event occurring.

• Always

• Sometimes

• Never

When an event is impossible, what is its probability?

• 1

• 0.5

• 0

• 0.05

If an event cannot happen, what value is assigned its probability?

• 0

• 1

• 0.5

• 0.05

What is the sum of the probabilities of all the outcomes in a sample space?

• 1

• 0

• 0.5

• 2

If the probability that it will rain tomorrow is 0.20, what is the probability that it won't rain tomorrow?

• 0.80

• 0.20

• 1

• 0.40

If two dice are rolled one time, find the probability of getting a sum of 7.

• 1/6

• 1/10

• 1/9

• 5/6