Boys Red 6 times, each time taking the test scored below Â. 20,15,25,21,27, x is in the test six times with an average score of 22 points. , find the red that boys do a test on a few points. way from the red for the boys to do the final test. Is the 6th to score a few points. And it says that in the test six times, averaging 22 points that means. overline {X} = 22. , from Overline {X} = frac { sum x_ {i}} {N} instead of into it. It has 22 = frac {20 + 15 + 25 + 21 + 27 + x} {6} Next, solve the equation to solve for x here. 22 Times 6 = 108 + x. 132 = 108 + x x = 132 108 x = 24 so Red boys scored 24 points the last time.
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