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Statement of a problem № m1047

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The frequency distribution of order lead time at Ecommerce.com from Exercise 18 is repeated below. Lead Time (days) Frequency 0 up to 5 .......... 6 5 up to 10.......... 7 10 up to 15.......... 12 15 up to 20.......... 8 20 up to 25.......... 7 Total........... 40 a. How many orders were filled in less than 10 days? In less than 15 days? b. Convert the frequency distribution to a cumulative frequency distribution. c. Develop a cumulative frequency polygon. d. About 60% of the orders were filled in less than how many days?




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