Math 1342 Section 2.1 1) Use the given frequency distribution to find the (a) class width. (b) class midpoints of the first class. (c) class boundaries of the first class. Phone Calls (per day) Class Frequency, f 8 - 11 18 12 - 15 23 16 - 19 38 20 - 23 47 24 - 27 32 2) Consider the following data set. 30 72 52 70 32 73 69 68 67 59 70 45 69 68 42 71 69 49 58 66 73 74 55 71 Construct a frequency distribution using five classes. Then find midepoints, a relative frequency distribution, a cumulative frequency distribution, and class boundaries. Class Frequency f Midpoint Relative Cumulative Class boundari frequency frequency