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Grade: 12th pass

                        

What is the arithmetic mean of first 16 natural number with weights being the number itself?

3 years ago

Answers : (1)

Vidhi Shah
28 Points
							The sum of first n natural numbers is given by the formula,    Sn=n(n+1)2Put n=16 to get the sum of first 16 natural numbers.    S16=16 (16+1)2          =16×172          =8×17          =136The required arithmetic mean is given by,    mean=sum of obervationsnumber of observations               =13616               =8.5
						
2 years ago
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