Question

answer the question

Answer 1

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Answer 2

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Sol : First 5 multiples of 3 is 3 x 1 = 3 , 3 x 2 = 6 , 3 x 3 = 9 , 3 x 4 = 12 and 3 x 5 = 15.

 Number of observations = 5.

                Sum of all observations
Mean =  ------------------------------------
                  No. of observations

                3 + 6 + 9 + 12 + 15
Mean =  ------------------------------
                           5

                       45
Mean  =  ------------------------
                         5

Mean = 9.


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