SOLUTION: A data set has nine values. The mean of the set is five. When a tenth value is added, the mean becomes six. What is the tenth value? What is the sum of the original nine data va

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Question 555336: A data set has nine values. The mean of the set is five. When a tenth value is added, the mean becomes six. What is the tenth value?
What is the sum of the original nine data value
Make a Plan Write and solve an equation to find the tenth value
But is you can help me its in math but that if your a math major but its okay if you aren't i have tryed to do this problem more than once.
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
A data set has nine values. The mean of the set is five.
Total points was 9*5 = 45
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When a tenth value is added, the mean becomes six. What is the tenth value?
Total points will be 10*6 = 60 points.
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The 10th value must have been 60-45 = 15
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What is the sum of the original nine data values : 45
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Cheers,
Stan H.
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