Question: The table below contains data about the cost of electricity (in RM) during a recent month for a random sample of 40 two-bedroom apartments

The table below contains data about the cost of electricity (in RM)

The table below contains data about the cost of electricity (in RM) during a recent month for a random sample of 40 two-bedroom apartments in Petaling Jaya. Answer the following questions. 97 198 148 163 89 150 131 107 187 116 175 143 209 121 94 172 178 103 188 121 110 150 172 128 162 162 144 122 150 134 100 143 156 177 120 118 108 88 153 168 (2 Marks) a. Construct a frequency distribution for the above data set using six classes. b. Using the result from part (i), calculate the relative frequencies for each class. (1 Mark) c. Construct a frequency histogram for these data. (2 Marks) Below is a sample of ten students' scores in a Statistics examination. 89 67 75 79 93 39 67 71 42 c. Calculate the mean score. d. Find the median and mode. e. Calculate the standard deviation for the sample data. 38 (1 Mark) (1 Mark) (3 Marks)

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