Math, asked by dipesh5715, 10 months ago

9: In a city, the weekly observations made in a study on the cost of living
given in the following table:
Table 14.10
Number of weeks
Cost of living index
140 - 150
150 - 160
160 - 170
170-180
180 - 190
190-200
Total​

Answers

Answered by amitnrw
8

Mean cost of living index = 166.35

Step-by-step explanation:

Cost of living        Mean        Weeks       Mean * weeks

140 - 150               145            5                725

150 - 160               155            10               1550

160 - 170               165            20               3300

170 - 180               175             9                  1575

180 - 190               185            6                  1110

190 - 200               195            2                 390

                          Total          52                8650

Mean index = 8650/52  = 166.35

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