1.

The mean and standard deviation of 100 observations were calculated as 40 and 5.1 respectively by a student qho look by mistake 50 instead of 40 for one observation. What are the correct mean and standard deviation ?

Answer»

The mean and standard deviation of 100 observations were calculated as 40 and 5.1 respectively by a student qho look by mistake 50 instead of 40 for one observation. What are the correct mean and standard deviation ?



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