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I1. Mrs. Marasigan. One morning, she asked her secretary to record the service time for 15 customers. The following are service times in minutes. 20,

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I1. Mrs. Marasigan. One morning, she asked her secretary to record the service time for 15 customers. The following are service times in minutes. 20, 35, 55, 28, 46, 32, 25, 56, 55, 28, 37, 60, 47, 52, 17 Find the value of the following. a. D2 b. D6 C. D8 d. P30 e. Q2

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