QUESTION 2 [35] A courier company recorded delivery times (in minutes) to deliver parcels to their...
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QUESTION 2 [35] A courier company recorded delivery times (in minutes) to deliver parcels to their clients. The sample data is summarized in the cumulative frequency distribution below: Delivery time (minutes) ≤ 10 $ 20 ≤30 ≤ 40 ≤ 50 ≤ 60 Cumulative frequency 10 35 58 77 89 100 If the first class in the frequency distribution is 1-10, calculate the following: a) The mean delivery time of parcels to clients by this courier company. [5] b) The standard deviation of the delivery time of parcels to clients by this courier company. [10] [10] c) The median delivery time of parcels to clients by this courier company. d) The most common courier delivery time? [10 ..The end of Assignment 1.. Page 12 of 16 QUESTION 2 [35] A courier company recorded delivery times (in minutes) to deliver parcels to their clients. The sample data is summarized in the cumulative frequency distribution below: Delivery time (minutes) ≤ 10 $ 20 ≤30 ≤ 40 ≤ 50 ≤ 60 Cumulative frequency 10 35 58 77 89 100 If the first class in the frequency distribution is 1-10, calculate the following: a) The mean delivery time of parcels to clients by this courier company. [5] b) The standard deviation of the delivery time of parcels to clients by this courier company. [10] [10] c) The median delivery time of parcels to clients by this courier company. d) The most common courier delivery time? [10 ..The end of Assignment 1.. Page 12 of 16
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