answer all, please 1. A group of employees of Unique Services will be surveyed a
ID: 2922468 • Letter: A
Question
answer all, please
1. 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 Emplovees Supervisors A Maintenance B ProductionC Management 302 SecretarialE 120 50 1.460 68 a. What is the probability that the first person selected is classified as a maintenance employee? b. What is the probability that the first person selected is either in maintenance or in secretarial? c. What is the probability that the first person selected is a supervisor and in management?Explanation / Answer
Total number of employees = 120 + 50 + 1460 + 302 + 68 = 2000
a) Probability that the first person selected is classified as a maintenance employee is computed as:
= Total number of maintenance employees / Total employees
= 50 / 2000
= 0.025
Therefore 0.025 is the required probability here.
b) Probability that the first person selected is either classified as a maintenance employee or secretarial is computed as:
= Total number of maintenance employees + secretarial employees / Total employees
= (50 + 68) / 2000
= 0.059
Therefore 0.059 is the required probability here.
c) As there are no employees which are both supervisor and management. Therefore the probability here is 0.
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