Posted by sherene on Monday, February 15, 2010 at 10:57am.
tenequal scores have a mean of 30. if one score is doubled, and the other nine remain the same, what is the mean of the new set of scores?

algebra  drwls, Monday, February 15, 2010 at 11:32am
It would ordinarily depend upon which score is doubled, but since they are all the same, each score must originally be 30. The combined total now becomes 330, and the mean becomes 33.
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