SELF-REVIEW 5-3

ZY-VY

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A sample of employees of Worldwide Enterprises is to be surveyed about a new health care plan. The employees are

classified as follows:

Classification Event Number of Employees

Supervisors A

120

Maintenance B

Production

с

Management D

Secretarial E

(a) What is the probability that the first person selected is:

(i) either in maintenance or a secretary?

(ii) not in management?

50

1,460

302

68

Van diagram illustrating your answesento per

(c) Are the events in part (a)(i) complementary or mutually exclusive or both?