EM-2972
Quartiles and percentiles
E Math · Secondary 4 · Easy · Quartiles and percentiles
The cumulative frequency graph for the heights of 200 students shows that the lower quartile is 158 cm and the upper quartile is 172 cm. What is the interquartile range of the heights?
- 14 cm
- 7 cm
- 21 cm
- 172 cm
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