SOLUTION: If you have 14 people sit a test.The mean for the test is 68% one person received 83% What is the new mean for the class

Question 1055597: If you have 14 people sit a test.The mean for the test is 68% one person received 83%
What is the new mean for the class
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Your problem setup is a little disjointed.
14 people sat on a test and got a 68% average, then one more person took the test and got an 83%?
I'm assuming that's what you mean.
If not repost and explain it better.
The average, A, is

It's the total of all scores divided by 14,

Now add the new test scores,

So then the new average will be the new test scores divided by 15,

Use your calculator to complete.

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