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The table below shows the daily expenditure on food of 25 households in a locality
Daily expenditure ( in Rs ): | 100-150 | 150-200 | 200-250 | 250-300 | 300-350 |
Number of households: | 4 | 5 | 12 | 2 | 2 |
Given:
The daily expenditure on food of 25 households in a locality.To do:
We have to find the mean daily expenditure on food by a suitable method.
Solution:
Let the assumed mean be $A=225$.
Mean $=A+\frac{\sum{f_id_i}}{\sum{f_i}}$
Therefore,
Mean $=225+(\frac{-350}{25})$
$=225-14$
$=211$
The mean daily expenditure on food is Rs. 211.
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