folakemi2 folakemi2

06-11-2022
Mathematics

Answered

age:3, 4,5,6,7,8,9,10
number of children:,6,5,x,6,9,5
The table shows the distribution of ages of a number of children in a school, find the mean of distribution is 7,find the;
value of x
standardndeviation of their ages

Answer :

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