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Without using a computer, make a frequency distribution and histogram (using appropriate bins) for these 28 observations on the amount spent for dinner for four in downtown Chicago on Friday night. (b) Repeat the exercise, using a different number of bins. Which is preferred? Why? Dinner

95 103 109 170 114 113 107
124 105 80 104 84 176 115
69 95 134 108 61 160 128
68 95 61 150 52 87 136

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