SOLUTION: mean of 3 scores is 4. if sum of first two scores is 6, find the value of the third score.
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Question 1021877: mean of 3 scores is 4. if sum of first two scores is 6, find the value of the third score.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
But you also know,
Substituting,
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