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31 August, 06:39

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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  1. 31 August, 09:18
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    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
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