(a)[3]
Draw a cumulative frequency diagram to represent this information.
(b)[1]
Find an estimate of the 75th percentile.
Mathematics 0580 · IGCSE · Cumulative frequency diagrams
Cumulative frequency diagrams — practice question
The table gives some details about the heights of 200 plants. Cumulative frequency data: $h \le 30: 6$, $h \le 40: 42$, $h \le 50: 76$, $h \le 60: 170$, $h \le 70: 190$, $h \le 80: 200$.