Statisticsmedium · Past Paper
The mean of 10 numbers is 15. If one number 24 is replaced by 34, what is the new mean?
A16
B15.5
C15.1
D16.5
✓ Correct Answer: A — 16
Old sum = 150. New sum = 150 - 24 + 34 = 160. New mean = 160/10 = 16.
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