Statisticsmedium · Past Paper
Find the weighted mean of 10, 20, 30 with weights 1, 2, 3 respectively.
A20
B23.33
C25
D15
✓ Correct Answer: B — 23.33
Weighted Mean = (10*1 + 20*2 + 30*3) / (1+2+3) = (10+40+90)/6 = 140/6 = 23.33.
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