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The weekly observations on cost of livin...

The weekly observations on cost of living index in a certain city for the year 2004-2005 are given below. Compute the weekly cost of living index. Cost of living index                      Number of students 1400-1500                                    5 1500-1600                                    10 1600-1700                                    20 1700-1800                                    9 1800-1900                                    6 1900-2000                                    2

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