Question

Eight balls numbered

1

to

8

are placed in a bag.
Some of the balls are grey and some are white.
The balls numbered

3

,

4

, and

6

are grey. The balls numbered

1

,

2

,

5

,

7

, and

8

are white.

A ball will be selected from the bag at random.
The

8

possible outcomes are listed below.
Note that each outcome has the same probability.

1

2

3

4

5

6

7

8

Complete parts (a) through (c). Write the probabilities as fractions.

(a) Check the outcomes for each event below. Then, enter the probability of the event.

	Outcomes								Probability
	1	2	3	4	5	6	7	8
Event A: The selected ball has an odd number on it
Event B: The selected ball is grey
Event A or B: The selected ball has an odd number on it or is grey
Event A and B: The selected ball has an odd number on it and is grey

(b) Compute the following.

P(A)+P(B)-P(A and B)=

(c) Select the answer that makes the equation true.

=P(A)+P(B)-P(A and B) ▼(Choose one)

Answer 1