Statisticshard · Past Paper

What is the coefficient of range for a data set with Max = 100 and Min = 20?

A0.5
B0.67
C0.8
D1.2

✓ Correct Answer: B — 0.67

Coefficient of Range = (Max - Min) / (Max + Min) = (100 - 20) / (100 + 20) = 80 / 120 = 2/3 ≈ 0.67.

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