1. An ecologist is studying a forest with a mixture of tree types. Since the average tree height in the area is 40 feet, he measures the height of the tree against that. He also records the type of tree. The results
are shown in the table and segmented bar graph. Is there evidence of an association between tree
height and tree type? Explain your reasoning.
under 40 feet
40 feet or taller
total
deciduous
45
30
75
evergreen
14
10
24
total
59
40
99
100
W under 40 feet
75+
40 feet or taller
50
25
0
deciduous evergreen