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average formula

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To find the average, first we need to calculate the sum of the elements, then we have to divide the sum of the elements by the no of elements to get the average.
                                               Average= sum of elements/ no of elements

               Ex:         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
                                       

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