Question B

The table below contains data about the cost of electricity during a recent month for a random sample of 30 one-bedroom apartments in a large city. Complete parts (=) through (c) below. 93 172 184 109 188 149 123 98 180 138 179 115 172 150 150 142 133 201 90 207 150 178 115 102 110 131 147 173 124 120 a. Construct a frequency distribution and a percentage distribution that have class intervals with the upper class boundaries $90, $110, and so on. Construct a frequency distribution. Cost (S) Frequency 80 but less than 100 100 but less than 120 120 but less than 140 140 but less than 180 but less than 180 but less than 200 200 but less than 220 Construct a percentage distribution. Cost ($) Percentage 80 but less than 100 10%% 100 but less than 120 16.67 % 120 but less than 140 20 % 140 but less than 160 20 % 180 but less than 180 23.33 but less than 200 3.33% 200 but less than 220 6.87% (Round to two decimal places as needed.) b. Construct a cumulative percentage Cost ($) Percentage Less Than distribution. Indicated Amount 80 100 120 140 7% 160 180 200 220 LOL (Round to two decimal places as needed.)