Find the mean of first n natural numbers

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Mean of first n natural numbers

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THE AVERAGE OF FIRST N NATURAL NUMBERS=(n+1)/2


The average of first 5 natural numbers

                                 sum of 5 natural numbers=1+2+3+4+5=15

                                 no of elements = 5

                                 average = 15/5 =3


by formula  = average of first 5 natural numbers = (n+1)/2 =(5+1)/2

                                                                                              =6/2

                                                                                              =3


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