Refer to Exercise 2.70. Prepare the cumulative frequency, cumulative relative frequency, and cumulative percentage distributions by using the frequency distribution table of that exercise.

a. Construct a frequency distribution table. Take 32 as the lower limit of the first class and 6 as the class width.
b. Calculate the relative frequency and percentage for each class.

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37 37 37 32 38 39 40 4 4 42 42 42 4344 44 45 45 45 47 47 47474748 48 49 50 50 5 52 53 54 59 61 34. 35 36 37 3