<PRE><B>Question 1117347</B>
The mean (average) score on a test taken by 10 students was 75.0. An 11th student took a makeup test and got a score of 86. If the makeup test score is averaged in with the other 10 scores, what is the increase in the mean score? 
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Sum of all the scores of the 10:: 10*75 = 750
Sum of all the scores of the 11:: 750+86 = 836
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New mean:: 836/11 = 76
Ans:: Increase in mean:: 1
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Cheers,
Stan H.
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