11. Manufacturing company produced the following number of units in the last 20 days. The information is organized into the frequency distribution table below. How many classes would you recommend? Units Frequency 20 up to 30 16 30 up to 40 25 40 up to 50 51 50 up to 60 80 A. 8 B. 7 C. 6
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Step 1
To calculate the cumulative frequency, we add up the frequencies of all the previous class intervals. For the first class interval (20 up to 30), the cumulative frequency is 16. For the second class interval (30 up to 40), the cumulative frequency is 16 + 25 = Show more…
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