Question

The mean of six numbers is 23.If ine of the no. is excluded,the mean of the remaining nos. is 20.Find the excluded no.

Answer 1

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Answer 2

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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