Question

the mean of the marks scored by 50 students was found to be 39. later it was discovered that a score of 43 was misread as 23.find the correct mean

Answer 1

Hi there!

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What is Mean?

The average of a given set of numbers is called the Arithmetic mean, or simply the mean, of the given numbers.

Mean = $\frac{Sum \: of \: observations}{Number \: of \: observations}$

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