Maths/Statistics/The number of children in 20 families of a locality is recorded as follows Find the mean number of children per family

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Questions / The number of children in 20 families of a locality is recorded as follows Find the mean number of children per family

Maths / Statistics / Mean of Ungrouped Data

QUESTION

The number of children in 20 families of a locality is recorded as follows : $3,1,4,0,2,1,1,2,3,3,2,2,2,5,0,1,4,1,2,1$

Find the mean number of children per family.

EXPLANATION

Explain Type	Explanation Content
Text	We know that mean $=frac {sum ; of ; all ; observations}{total ; number ; of ; observations}$ $= frac {3+1+4+0+2+1+1+ .... + 1}{20}$ $=frac {40}{20}=2$ Therefore, the mean of the number of children per family is 2.

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Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.