The table below contains data about the cost of electricity during a recent mont
ID: 2408411 • Letter: T
Question
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 (a) through (c) below 201 150 163 90 172 139 204 121 96 150 132 109 187 115 170 176 103 181 115 113 147 179 127 163 160 143 150 136 a. Construct a frequenc PConstruct a frequency distribution y distribution and a percentage distribution that have class intervals with the upper class boundaries $99, $119, and so on Cost (S) 80 but less than 100 100 but less than 120 120 but less than 140 140 but less than 160 160 but less than 180 180 but less than 200 200 but less than 220 to seExplanation / Answer
a)
Cost ($)
Frequency
80 but less than 100
3
100 but less than 120
5
120 but less than 140
6
140 but less than 160
5
160 but less than 180
7
180 but less than 200
2
200 but less than 220
2
b)
Cost ($)
Frequency
Relative Frequency
Percentage Distribution
80 but less than 100
3
`3/30
10.00%
100 but less than 120
5
`5/30
16.67%
120 but less than 140
6
`6/30
20.00%
140 but less than 160
5
`5/30
16.67%
160 but less than 180
7
`7/30
23.33%
180 but less than 200
2
`2/30
6.67%
200 but less than 220
2
`2/30
6.67%
Total Frequency = 30 (Count of All Frequencies)
Relative Frequency = Frequency / Total Frequencies
Percentage Distribution = (Frequency / Total Frequencies)* 100
Cost ($)
Frequency
80 but less than 100
3
100 but less than 120
5
120 but less than 140
6
140 but less than 160
5
160 but less than 180
7
180 but less than 200
2
200 but less than 220
2
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