7. 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 410 Maintenance B 195 Production C 610 Management D 864 Secretarial E 146 What is the probability that the first person selected is either in management or in supervision?   Multiple Choice 0.18 0.00 0.57 0.39

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