Statisticsmedium · Past Paper
Calculate the mean of the following discrete data: x=10, f=2; x=20, f=3.
A15
B16
C18
D14
✓ Correct Answer: B — 16
Sum (fx) = (10*2) + (20*3) = 20 + 60 = 80. Sum (f) = 2 + 3 = 5. Mean = 80 / 5 = 16.
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