# Construct a frequency distribution table

Q1

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.

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#### Solution Preview

Please see the attached files.

Frequency distribution and percentage distribution table

Procedure

Step 1: Arrange the given data in the ascending order

Step2: Divide the given observations into various classes as per the given instructions.

Step 3: Count the number of observations falling in ...

#### Solution Summary

The expert constructs a frequency distribution table.