The scores 12,17,15 and x have a mean of 13. What is the value of x

asked Sep 12, 2017 190k views

3 votes

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3 votes

The mean is the sum of the values divided by the amount of values.

So the mean is represented here by

(12+17+15+x)/(4)=13

Solve for

$\rightarrow(44+x)/(4)=13$

$\rightarrow 44+x=52$

$\rightarrow x=8$

Tarun Umath answered Sep 18, 2017

7.2k points

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