18Mean of 50 observations was found to be 80.4. But later on, it was d – InterviewSolution

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1.	18Mean of 50 observations was found to be 80.4. But later on, it was discovered that 96 wasmisread as 69 at one place. Find the correct mean.
Answer» mean is 80.4 and total 50 so sum is 4020now 69 is wrong and 96 is correct so correct sum is 4020-69+96=4047so new mean=4047/50=80.94

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