Q. 4

# A student obtaine

Given, Uncorrected mean is 40 and corrected SD is 5.1 and N = 100

To Find: Find the correct mean and SD

Explanation: Here,

Then,

The corrected sum of observation

So,

Now, Given Incorrect SD = 5.1

Corrected

Correct SD is 5

Hence, Correct mean is 39.90 and correct SD is 5

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