Math 227
Section 0364
Fall 2009
Mc Gann
Computer assignment #1
1.
A social scientist examines the records at several hospitals and finds the following
sample of ages of women at the birth of their first child:
30
23
21
18
20
21
42
20
18
25
18
22
36
15
22
29
35
24
36
18
27
20
24
14
22
33
21
18
21
16
24
25
23
21
25
15
28
21
20
20
22
24
17
25
26
23
17
19
36
19
21
21
22
15
26
17
24
33
24
23
28
20
39
21
23
23
39
26
33
38
22
24
28
19
22
38
18
16
21
26
19
32
23
24
17
24
28
a)
Construct a histogram of the data. (See textbook Page 60)
b)
Comment on the shape of the distribution.
c)
Construct a stem and leaf plot of the data. (see textbook page 83).
d)
Construct a grouped frequency distribution. (See textbook page 46).
e)
Comment on the advantage and disadvantage of a stem and leaf plot versus a
histogram.
2.
Eye colors of math 227 students for a particular year were recorded.
Eye Color:
Brown
Hazel
Blue
Clack
Number of students:
100
25
50
75
a)
b)
Construct a pie chart of the data. (See textbook page 80).
Construct a Pareto chart of the data. (See textbook page 82).
3.
A statistics instructor is interested in determining if there is a relationship between
the final exam score in Statistics 101 and the final exam scores of the same
students who took Statistics 102. Draw a scatter plot and comment on the nature
of the relationship.
Stat 101, x
Stat 102, y
87
83
See page 89 of textbook.
92
88
68
70
72
74
95
90
78
74
83
83
98
99