Question

The mean of the following distribution is 50
X - 10 30 50 70 90
F - 17 5a+3 32 7a-11 19
Find the value of a.

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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