For the given data calculate cost of living index number. is?
Group Food Clothing Fuel and lighting House Rent Miscellenious
I $70$ $90$ $100$ $60$ $80$
W $5$ $3$ $2$ $4$ $6$

78

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77

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92

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58

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Solution

The correct option is A $77$
Cost of living index number $= \frac{\sum I_{i} W_{i}}{\sum W_{i}}$

$\sum I_{i} W_{i} = 1540$

$\sum W_{i} = 20$

$\Rightarrow$ Cost of living index number $= \frac{1540}{20} = 77$

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Similar questions

Q. Find

y

,if cost of living index number is

200

Group	Food	Clothing	Fuel and lighting	House rent	Miscellaneous
I	$180$	$120$	$160$	$300$	$200$
W	$4$	$5$	$3$	$y$	$2$

Q. Identify the median class from the given data

:

Fruits	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$	$70 - 80$	$80 - 90$	$90 - 100$
Boxes	$1$	$3$	$6$	$7$	$8$	$5$	$7$

Q. Find the median for the grouped data given below

:

Marks	$50 - 60$	$60 - 70$	$70 - 80$	$80 - 90$
Students	$3$	$4$	$8$	$5$

The median for the data is :

$\begin{matrix} IQ & 60 - 70 & 70 - 80 & 80 - 90 & 90 - 100 & 100 - 110 & 110 - 120 & 120 - 130 No. of pupils & 2 & 3 & 5 & 16 & 14 & 13 & 7 \end{matrix}$

Q. Find the approximate value of mode for the following data

:

Marks	$50 - 60$	$60 - 70$	$70 - 80$	$80 - 90$	$90 - 100$
Students	$12$	$10$	$24$	$5$	$9$

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For the given data calculate cost of living index number. is?GroupFoodClothingFuel and lightingHouse RentMiscelleniousI70901006080W53246

The correct option is A 77Cost of living index number =∑IiWi∑Wi ∑IiWi=1540 ∑Wi=20 ⇒ Cost of living index number =154020=77

For the given data calculate cost of living index number. is?
Group Food Clothing Fuel and lighting House Rent Miscellenious
I $70$ $90$ $100$ $60$ $80$
W $5$ $3$ $2$ $4$ $6$

The correct option is A $77$
Cost of living index number $= \frac{\sum I_{i} W_{i}}{\sum W_{i}}$

$\sum I_{i} W_{i} = 1540$

$\sum W_{i} = 20$

$\Rightarrow$ Cost of living index number $= \frac{1540}{20} = 77$