The table shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method

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Solution

$x_{i} = 125, 175, 225, 275, 325$
$\sum f_{i} = 4 + 5 + 12 + 2 + 2 = 25$
$\sum x_{i} f_{i} = 500 + 875 + 2700 + 550 + 650 = 5725 ¯ x = \frac{5725}{25} = 211$

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The table shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method

xi=125,175,225,275,325 ∑fi=4+5+12+2+2=25∑xifi=500+875+2700+550+650=5725¯x=572525=211

$x_{i} = 125, 175, 225, 275, 325$
$\sum f_{i} = 4 + 5 + 12 + 2 + 2 = 25$
$\sum x_{i} f_{i} = 500 + 875 + 2700 + 550 + 650 = 5725 ¯ x = \frac{5725}{25} = 211$