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.
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The year for which we calculate the cost of living index is referred as ___ year.

The cost of living index and the number of weeks are given in the following table. Find the mean cost of living index : Use step deviation method .

Calculate the cost of living indext for the year 2008 taking 2000 as the base year from the following information.

In a city, the weekly observations made on cost of living index are given below. One week is chosen at random. Find the probability that chosen week has cost of living greater than 150 but less than 170.

The cost of living indext for the year 2004 considering the base year as 2005 is Rs. 120. Find P.

Calculate the Cost of Living Index Number for the following data.

Three essential commoditites, the quantities of their consumption and their prices in the years 2006 and 2007 are listed below. The cost of living index for the years 2006 and 2007 is calculated on the prices of these three commodities only. ltimg src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/PS_MATH_IX_C18_E06_002_Q01.png" width="80%"gt Find the cost of living index of the year 2007, taking 2006 as the bae year.

In a city of weekly observations made in a study on the cost of loving index are given in the following ta draw a frequency polygon (without constructing histogram )