what is mean ?

Mean is an average of a few numbers

Mean - Sum of all observations/Total number of observations

Mean of 1, 2 nd 3

1+2+3/3

2

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a average of a number is known as mean .it is used in protability.let we find mean of a number 4,5,6

4+5+6/3=5 ans

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the mean or the arithemetic mean is = sum of all the observations /no. of observations

for eg mean of 3,5,6,10

3+5+6+10/4

=24/4

=6

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