EM-2971
Cumulative frequency curves
E Math · Secondary 4 · Easy · Cumulative frequency curves
The cumulative frequency graph of the heights of 200 students shows that the lower quartile is 165 cm and the upper quartile is 172 cm. What is the interquartile range of the heights?
- 7 cm
- 3.5 cm
- 172 cm
- 165 cm
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