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5. The Quick Change Oil Company has a number of outlets. The numbers of oil changes...

5. The Quick Change Oil Company has a number of outlets. The numbers of oil changes at the Oak Street outlet in the past 20 days are in the table below:

65 98 55 62 79 59 51 90 72 56
70 62 66 80 94 79 63 73 71 85

a) How many classes would you recommend?

b) What class interval would you suggest? (round to nearest one)

c) What lower limit would you recommend for the first class?

d) Organize the information into a frequency distribution and determine the relative frequency distribution (round to nearest 100th)

e) Comment on the shape of the distribution.

Math   Statistics-And-Probability   
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