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find the arithmetic mean of first ten numbers.

Asked by devendu 25th January 2014, 8:24 AM
Answered by Expert
Answer:
Sum of first ten numbers = S = n(n+1)/2 where n = 10 Thus, S = 10(10+1)/2 = (10 x 11)/2 = 110/2 = 55 Now, arithmetic mean of first ten numbers = S/n = 55/10 = 5.5
Answered by Expert 29th January 2014, 4:38 PM
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