Cost of electricity-frequency distribution table

Reference no: EM1389829

The following data show the cost of electricity during August 2010 for a random sample of 50 one-bedroom apartments in a large city:

Raw Data on Electricity Charges (RM)

152 75 180 157 120 81 132 106 61 170

120 164 69 95 151 90 127 192 100 144

120 120 185 154 102 107 123 147 88 146

74 142 129 133 109 122 166 145 118 128

87 98 162 135 93 114 170 116 108 130

a. Construct a frequency distribution table and a percentage distribution table that have class intervals with the upper class boundaries RM79.5, RM 99.5, and so on.

b. Construct a cumulative percentage distribution.

Reference no: EM1389829

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