Statisticsmedium · Past Paper
What is the mean of first 10 multiples of 5?
A25
B27.5
C30
D50
✓ Correct Answer: B — 27.5
Multiples: 5, 10... 50. Mean = 5 * (1+2...+10)/10 = 5 * 5.5 = 27.5.
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