SOLUTION: Respected Sir , Please help me to solve this question, I will be very grateful for your help If a variable assumes the value 1,2,3.....5 with frequencies as 1,2,3,....5, then w

Question 487750: Respected Sir ,
Please help me to solve this question, I will be very grateful for your help
If a variable assumes the value 1,2,3.....5 with frequencies as 1,2,3,....5, then what is the AM ?
As the answer given is : 11/3
Please help me to simplify this !!!

Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
You want to find the arithmetic mean of one 1, two 2's, ..., five 5's, which is essentially

since the sum of the entries is 1^2 + ... + 5^2 and there are 1+2+...+5 entries.
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