SOLUTION: The Standard Deviation of a distribution of 100 values was Rs. 2. If the sum of squares of actual values was Rs. 3,600, what was the mean of this distribution?
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Question 1088168: The Standard Deviation of a distribution of 100 values was Rs. 2. If the sum of squares of actual values was Rs. 3,600, what was the mean of this distribution?
Answer by Mathtutoronline(1) (Show Source): You can put this solution on YOUR website!
Here:
Standard deviation= 2
Sum of squares= 3600
Total numbers=N=100
To find: Mean?
Putting values in formula:
Squaring both sides:
Simplifying
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