1. Construct a histogram for the 24 examination scores given next.
|
78
|
74
|
82
|
66
|
94
|
71
|
64
|
88
|
55
|
80
|
73
|
86
|
|
91
|
74
|
82
|
75
|
96
|
78
|
84
|
79
|
71
|
83
|
78
|
79
|
2. The following table gives radon concentration in pCi/liter obtained from 40 houses in a certain area.
|
2.9
|
0.6
|
13.5
|
17.1
|
2.8
|
3.8
|
16.0
|
2.1
|
6.4
|
17.2
|
|
7.9
|
0.5
|
13.7
|
11.5
|
2.9
|
3.6
|
6.1
|
8.8
|
2.2
|
9.4
|
|
15.9
|
8.8
|
9.8
|
11.5
|
12.3
|
3.7
|
8.9
|
13.0
|
7.9
|
11.7
|
|
6.2
|
6.9
|
12.8
|
13.7
|
2.7
|
3.5
|
8.3
|
15.9
|
5.1
|
6.0
|
(a) Construct a stem-and-leaf display.
(b) Construct a frequency histogram and interpret.
(c) Construct a pie chart and interpret.