9-24 Live Classwork - 3.3 Addition Rule

Decide if the events A and B are mutually exclusive or not mutually exclusive.

A die is rolled.

A: The result is an odd number.

B: The result is an even number.

• mutually exclusive

• not mutually exclusive

Decide if the events A and B are mutually exclusive or not mutually exclusive.

A date in Philadelphia is selected.

A: It rains that day.

B: It snows that day.

• mutually exclusive

• not mutually exclusive

Decide if the events A and B are mutually exclusive or not mutually exclusive.

A card is drawn from a standard deck of 52 playing cards.

A: The result is a club.

B: The result is a king.

• mutually exclusive

• not mutually exclusive

Decide if the events A and B are mutually exclusive or not mutually exclusive.

A card is drawn from a standard deck of 52 playing cards.

A: The result is a 7.

B: The result is a jack.

• mutually exclusive

• not mutually exclusive

A card is drawn from a standard deck of 52 playing cards.

Find the probability that the card is an ace or a king.

• 0.154

• 0.308

• 0.006

• 0.077

A card is drawn from a standard deck of 52 playing cards.

Find the probability that the card is an ace or a black card.

• 0.577

• 0.538

• 0.558

• 0.308

If a student is chosen at random, find the probability of getting someone who is a regular or heavy smoker. Round your answer to three decimal places.

• 0.221

• 0.662

• 0.193

• 0.128

If a student is chosen at random, find the probability of getting someone who is a man or a non-smoker. Round your answer to three decimal places.

• 0.921

• 0.945

• 0.941

• 0.860

During a​ 52-week period, a company paid overtime wages for 17 weeks and hired temporary help for 9 weeks. During 6 ​weeks, the company paid overtime and hired temporary help.

If an auditor randomly examined the payroll records for only one​ week, what is the probability that the payroll for that week contained overtime wages or temporary help​ wages?

• P(overtime wages or temporary help wages) = 0.500

• P(overtime wages or temporary help wages) = 0.385

• P(overtime wages or temporary help wages) = 0.175

• P(overtime wages or temporary help wages) = 0.250

• No.

• Yes.

• Maybe.

• I dont know.