1) The probability of an event is 0.98. What does this mean?

The event is unlikely to occur.

The event is likely to occur.

Event cannot occur.

Event is certain to occur.

2) The National Center for Health Statistics reported that of every 859 deaths in recent years, 31 resulted from an automobile accident, 178 from cancer, and 305 from heart disease. What is the probability that a particular death is due to a cause not listed?

31/859

402/859

514/859

345/859

3)

A group of employees of Unique Services is surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified in the table. Classification Event Number of Employees Supervisors 135 Maintenance 50 Production 1,650 Management 282 Administrative 36 Total 2,153 What is the probability that the first person selected is classified as a production employee? O 135/1650 300/2050 O 135/2153 O Pr(Event E)A group of employees of Unique Services is surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified in the table. Classification Event Number of Employees Supervisors 135 Maintenance 50 Production 1,650 Management 282 Administrative 36 Total 2,153 What is the probability that the first person selected is classified as a production employee? O 135/1650 300/2050 O 135/2153 O Pr(Event E)A supplier delivers an order for 50 electric toothbrushes to a store. By accident, three of the electric toothbrushes are defective. What is the probability that the rst two electric toothbrushes sold will be returned because they are defective? Each salesperson in a large department store chain is rated on their sales ability and their potential for advancement. The data for sampled salespeople are summarized in the following table. What is the probability that a salesperson selected at random has average sales ability and has excellent potential for advancement? Potential for Advancement Good Excellent Total Below Average 20 10 18 48 Sales Ability Average 44 56 50 150 Above Average 90 72 140 302 0 E 500 O i 10 O 135 A company set up a kiosk in a local mall for several hours and asked randomly selected people which color cell phone cover was their favorite. The company collated the data in the following table by Age and favorite color. Age