Question

village: No. of families 3. The following table gives the number of children of 150 families in a No. of children 0 10 1 21 2 55 3 42 4 15 5 7 Total 150 Find the average number of children per family.​

Answer 1

Answer:

Average (mean) =∑fi∑xifi

⇒average fat number of children per family=150(0×10)+(1×21)+(2×55)+(3×42)+(4×15)+(5×7)

⇒average fat number of children per family =1500+21+110+126+60+35

=150352=2.35

Step-by-step explanation:

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Answer 2

Answer:

Average (mean) =

∑f

i

∑x

i

f

i

⇒average fat number of children per family=

150

(0×10)+(1×21)+(2×55)+(3×42)+(4×15)+(5×7)

⇒average fat number of children per family =

150

0+21+110+126+60+35

=

150

352

=2.35

Hope it will help you

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