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5 3 9 10 17 Compute the sample standard deviation, CV and 65th percentile of the

ID: 3335556 • Letter: 5

Question

5 3 9 10 17 Compute the sample standard deviation, CV and 65th percentile of these data. B. Compute the Inter quartile range for these data C. Develop a frequency distribution for these data using 4 classes each v with a class width of 5. Make the lower limit of the first class 1 D. Determine the shape of these data using measures of central tendency. Sketch the diagram accordingly. E. Develop a cumulative frequency histogram. for the frequency distribution. F. Briefly explain key concepts ofprobability. -

Explanation / Answer

a) Mean = 4300

SD = 750

z = (5000 - 4300)/750 = 0.933

P = 0.1762

b) z = (4000 - 4300)/750 = - 0.4

P = 0.3446

c) z1 = (2500 - 4300)/750 = - 2.4

z2 = (4200 - 4300)/750 = - 0.133

P = 0.44

d) z = (5500 - 4300)/750 = 1.6

P = 0.0548

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