David Wise handles his own investment portfolio, and has done so for many years. Listed below is the holding time (recorded to the nearest whole year) between purchase and sale for his collection of 36 stocks.

a. How many classes would you propose?
b. What class interval would you suggest?
c. What quantity would you use for the lower limit of the initial class?
d. Using your responses to parts (a), (b), and (c), create a frequency distribution.
e. Identify the appearance of the frequencydistribution.

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8 8 6 11 11 9 85 11 4 8 5 14 7 12 86 11 9 9 15 8 8 12 5 9 8 5 9 10 11 3 9 8 6