EM-3021

Quartiles and percentiles

E Math · Secondary 4 · Easy · Quartiles and percentiles

The cumulative frequency graph for the heights of 200 plants shows that the median height is 18 cm, the lower quartile is 14 cm and the upper quartile is 22 cm. What is the interquartile range?

$8\ \text{cm}$
$4\ \text{cm}$
$22\ \text{cm}$
$18\ \text{cm}$

Loading problem…