Statisticsmedium · Past Paper
The mean weight of 6 boys is 48 kg. If one boy weighing 40 kg leaves, what is the new mean?
A49.6 kg
B50 kg
C48.5 kg
D47 kg
✓ Correct Answer: A — 49.6 kg
Total weight = 6 * 48 = 288. New Total = 288 - 40 = 248. New Mean = 248 / 5 = 49.6 kg.
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