# Find the average population in each village.

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Number of villages with respect to their population as per India census 2011 are given below.

 Population (in thousands) 12 5 30 20 15 8 Villages 20 15 32 35 36 7

Find the average population in each village.

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 Population (in thousands xi ) Villages fi x1 fi 12 20 240 5 15 75 30 32 960 20 35 700 15 36 540 8 7 56

Σfi = 145

Σfi xi = 2571

$\overline x = \frac {\sum f_ix_i}{\sum f_i}$

Mean = 2571/145 = 17.731 thousands