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RS Aggarwal Solutions Class 9 Mathematics Solutions for Mean Median And Mode Of Ungrouped Data Exercise 18A in Chapter 18 - Mean Median And Mode Of Ungrouped Data
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The number of children in 10 families of a locality are 2, 4, 3, 4, 2, 0, 3, 5, 1 and 6. Find the mean number of children per family.
Answer:
It is given that number of children in 10 families of a locality are 2, 4, 3, 4, 2, 0, 3, 5, 1 and 6.
We know that
Mean = sum of numbers/ total numbers
By substituting the values
Mean = (2 + 4 + 3 + 4 + 2 + 0 + 3 + 5 + 1 + 6)/ 10
On further calculation
Mean = 30/10
By division
Mean = 3
Therefore, the mean number of children per family is 3.
Video transcript
"hello students welcome to leader
homework
my name is anant anand sharma the
question here is
number of children's in ten families
of a locality are two four three four
two zero three five one and
six find the mean of number of
children's
per family so we need to find mean of
children's so it is given that the
number of children in 10 families
children are given
2 four
three four two zero
three five one
and six we know that what is the mean
formula
mean formula is
sum of numbers divided by
total number
so some add all these
divided by 10 since it is given for 10
number of families
on further calculation you will get 30
upon 10
which is 3. so the mean
that means average number of children
per family is
3 that's all for this if you have any
queries
feel free to comment below and subscribe
to the channel for all
future updates thank you"
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