Question

iii) The cost of living index and the number of weeks are given in the following table.
Find the mean cost of living index using direct mean method :
Cost of living
140 - 150 160 170 -
180 - 190 -
index
150 160 170 180 190 200
Number of weeks 5
10
18
9
6
2​

Answer 1

Answer:

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