A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows. Classification Event Number of Employees Supervisors A 120 Maintenance B 50 Production C 1,460 Management D 302 Secretarial E 68 What is the probability that the first person selected is either in maintenance or in secretarial?

Question

Mathematics

Hancock

22 September, 14:37

A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows. Classification Event Number of Employees Supervisors A 120 Maintenance B 50 Production C 1,460 Management D 302 Secretarial E 68 What is the probability that the first person selected is either in maintenance or in secretarial?

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Answers (1)

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River Rice · Answer 1

59/1000

Step-by-step explanation:

Given in the question, the section will follow

Event Number of employees Classification

A 120 Supervisors

B 50 Maintenance

C 1460 Production

D 302 Management

E 68 Secretarial

Total 2000 all employees

Probability that a person selected is in maintenance

P (M) = 50/2000 = 1/40

Probability that a person selected in in secretarial

P (S) = 68/2000 = 17/500

The probability that the first person selected is either in maintenance or in secretarial you add the two

1/40 + 17/500 = 59/1000