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Explain briefly, what is meant by a "wei...

Explain briefly, what is meant by a "weighted average".
Calculate a cost of living index from the following table of prices and weights.

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`104.4`
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ICSE-INDEX NUMBERS-EXERCISE 30 (b)
  1. Explain briefly, what is meant by a "weighted average". Calculate a...

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  2. Taking 1975 as the base year with an index number 100, calculate an in...

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  3. Calculate the index number for the year 1979 with 1970 as base from th...

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  4. Construct a composite index number, as a weighted mean from the follow...

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  5. Construct a composite index number from the following index numbers an...

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  6. A small industrial concern used three raw materials A, B and C in its ...

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  7. A small industrial concern used three raw materials A, B and C in its ...

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  8. A manufacturer uses 4 raw materials A, B, C, D in the production of a ...

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  9. The table shows the averages prices of coffee, sugar and milk in 1979 ...

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  10. An enquiry into the budget of the middle class families in a city in E...

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  11. Calculate the cost of living index number from the following group dat...

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  12. The following commodities have the given price indices relative to a b...

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  13. Calculate an index number for the second year, taking the first year a...

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  14. Construct the consumer price index number for 1988 on basis of 1998 fr...

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  15. Calculate the index number for the year 2006 with 1996 as the base yea...

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  16. Calculate the cost of living index for the following data:

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  17. Find the consumer price index number for 1991 on the base of 1990 from...

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  18. From the following data compose price index by applying weighted avera...

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  19. The following table shows the prices per unit in 1980 and 1984 with we...

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  20. The price quotations of four different commodities for 2001 and 2009 a...

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