Question
The mean of 100 numbers observations is 50 and their standards deviation is 5. The sum of all squares of all the observations is (a)50,000 (b) 250,000 (c) 252500 (d) 255000
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Text solutionVerified
Solution: Here, Mean,
Standard deviation,
Variance
Here,
Standard deviation,
Variance
Here,
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Question Text | The mean of 100 numbers observations is 50 and their standards deviation is 5. The sum of all squares of all the observations is (a)50,000 (b) 250,000 (c) 252500 (d) 255000 |
Answer Type | Text solution:1 |
Upvotes | 150 |