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Frequency table for items rejected by a manufacturer

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The number of items rejected daily by a manufacturer because of defects for the last 30 days are:

20, 21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8.

Complete this frequency table for the above data (note that the class intervals exclude the upper boundaries):

Frequency Rel. Freq Cum. Rel. Freq
4<9
9<14
14<19
19<24
24<29

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Solution Summary

Step-by-step calculation of frequency, relative frequency, and cumulative relative frequency.

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Please find the attached answer.

Raw Data Interval Frequency Rel. Freq. Cum. Rel. Freq.
4 4 - < 9 6 20.00% 20.00%
5 9 - < 14 4 13.33% 33.33%
6 14 - < 19 7 23.33% 56.67%
6 19 - < 24 9 30.00% 86.67%
8 24 - < ...

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