Use the contingency table to the right to determine the probability of events.

a. What is the probability of event

A?

b. What is the probability of event A and B?

c. What is the probability of event

A

and

B?

d. What is the probability of event

A

or

B?

	B	B
A	40	80
A	25	50

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Part 1

a. The probability of event

A

is

enter your response here.

(Type an integer or decimal rounded to three decimal places as needed.)

Part 2

b. The probability of event A and B is

enter your response here.

(Type an integer or decimal rounded to three decimal places as needed.)

Part 3

c. The probability of event

A

and

B

is

enter your response here.

(Type an integer or decimal rounded to three decimal places as needed.)

Part 4

d. The probability of event

A

or

B

is

enter your response here.

(Type an integer or decimal rounded to three decimal places as needed.)