4400 Higher June 2007 Paper 4 Q20

EdexcelHigherOld spec3 marksHistograms

20 The histogram shows information about the height, \(h\) metres, of some trees.

Histogram of frequency density against height 0 to 9 m with bars for 0 to 2, 2 to 3, 3 to 4 and 4 to 8; no scale on the frequency density axis

The number of trees with heights in the class \(2 \lt h \leqslant 3\) is 20
Find the number of trees with heights in the class

(i) \(4 \lt h \leqslant 8\)
(ii) \(3 \lt h \leqslant 4\)

(3)