Asked by Mike

A test was given out to a class of 20 students. The highest possible score to get is 30. The mean of the tests came out to 26. One student was caught cheating and got 20 points removed from their test. what is the new mean. 28,25,24,22 ?

Answers

Answered by PsyDAG
Mean = Σx/n

26 = Σx/20

Σx = 520 - 20 = 500

new Mean = 500/20 = ?
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