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प्रश्न
The numbers of children in 10 families of a locality are:
2, 4, 3, 4, 2, 0, 3, 5, 1, 1, 5. Find the mean number of children per family.
उत्तर
The number of children in 10 families is
⇒ 2, 4, 3, 4, 2, 3, 5,1,1, 5.
∴ Mean number of children per family = `"Total no . of chidren "/" Total families "`
= `(2 + 4 + 3 + 4 + 2 + 3 + 5 +1+1+ 5)/ 10`
= ` 30 / 10`
= 3
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