Question

if there are 6 men 4 women and 5 children whose ages separately are 30,25,5 years. then find the mean age of the family

Answer 1

[(6*30)+(4*25)+(5*5)] / 15 = 20.333 years

Answer 2

hye

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there are 6 men 4 women and 5 children whose ages separately are 30,25,5 years.

total age of men = 6*30 = 180

total age of women = 4*25 = 100

total age of children = 5*5 = 25

mean  = sum of observation / no. of observations

=>180 +100+25 / 6+4+5

=>305/15

=>20 .3 years

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hope it helps u