HW #4 – Describing Data with Pictures (SOLUTIONS)
2A.
-.3
-.2
-.1
-.0
.0
.1
.2
.3
.4
.5
.6
.7
.8
.9
2B.
8, 7
9, 1
4, 1
2, 6, 9
2, 3, 9
1, 2
2
1, 5, 6
3
8
0
3. After – Before now included:
Person
After
Before
A-B
Person
After
Before
A-B
Person
After
Before
A-B
1
164
150
14
12
192
162
30
22
175
153
22
2
142
150
-8
13
182
162
20
23
146
166
-20
Stemplot:
-2
-1
-0
0
1
2
3
4
5
6
7
8
9
4, 0
4, 4
9, 8, 6
4
1, 1, 4, 4, 7, 8, 9
0, 2, 8, 9
0, 9
9
4
2, 2 , 2, 2, 6
9
2
6
3
154
150
4
14
195
133
62
24
161
144
17
4
143
94
49
15
176
165
11
25
182
153
29
5
157
95
62
16
193
165
28
26
183
144
39
6
147
156
-9
17
184
165
19
27
178
99
79
7
174
160
14
18
152
166
-14
28
176
80
96
8
174
180
-6
19
142
166
-24
29
192
138
54
9
163
177
-14
20
190
172
18
30
192
130
62
10
165
99
66
21
183
172
11
31
173
111
62
11
168
86
82
Table for Histogram:
category
 30  x  20
 20  x  10
 10  x  0
0  x  10
10  x  20
20  x  30
30  x  40
40  x  50
50  x  60
60  x  70
70  x  80
80  x  90
90  x  100
how many?
2
2
3
1
8
4
1
1
1
5
1
1
1
6B.
Colorado Population
5000000
4500000
4000000
population
3500000
3000000
2500000
2000000
1500000
1000000
500000
0
1975
1980
1985
1990
1995
year
2000
2005
2010
7B.
Sociology Full Time Faculty 2000-2001
Instructor
2%
Assistant
27%
Full
44%
Associate
27%
Full Time Sociology Faculty 2000-2001
2000
1800
1600
1400
1200
1000
800
600
400
200
0
Instructor
Assistant
Associate
Full