The file contains the data in the next column about the cost of electricity during July 2010 for a random sample of 50 one-bedroom apartments in a large city.
a. Construct a frequency distribution and a percentage distribution that have class intervals with the upper class boundaries $99, $119, and so on.
b. Construct a cumulative percentage distribution.
c. Around what amount does the monthly electricity cost seem to be concentrated?

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Raw Data on Utility Charges (S) 96 17 202 178 147 102 153 197 127 82 157 185 90 116 172 1 148 213 130 165 141 149 206 175 123 128 144 68 109 167 95 163 150 154 130 143 187 166 139 149 108 19 183 15 114 135 191 137 129 158