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MHT CET 2024 Mathematics question

MathematicsStatisticsMHT CET 2024

The mean of 100 observation is 50 and their standard deviation is 5, then the sum of all squares of all the observations is

Answer: (A)

Solution

Variance . Here , , . So \frac{\sum x_i^2}{100}\fracExtra open brace or missing close brace{\sum$

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Question ID VK-092849