A machine produces the following number of rejects in each successive period of five minutes: 21...

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A machine produces the following number of rejects in each successive period of five minutes: 21 24 22 22 28 23 28 Required: 16 27 12 i. ii. iii. 26 24 11 26 3 21 23 9 29 19 24 27 18. 23 20 24 72223 33 17 25 26 13 24 15 22 22 7 17 13 31 20 8 28 25 3 19 30 23 Construct a frequency distribution from these data, using class intervals of equal width. (4 marks) Using the frequency distribution, calculate an appropriate measure of average. Explain. (4 marks) Using the frequency distribution, calculate an appropriate measure of dispersion. Explain. (4 marks) A machine produces the following number of rejects in each successive period of five minutes: 21 24 22 22 28 23 28 Required: 16 27 12 i. ii. iii. 26 24 11 26 3 21 23 9 29 19 24 27 18. 23 20 24 72223 33 17 25 26 13 24 15 22 22 7 17 13 31 20 8 28 25 3 19 30 23 Construct a frequency distribution from these data, using class intervals of equal width. (4 marks) Using the frequency distribution, calculate an appropriate measure of average. Explain. (4 marks) Using the frequency distribution, calculate an appropriate measure of dispersion. Explain. (4 marks)

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