Math 13800
Exam 3
Spring 2010
1
Circle your answer for questions 13.
Use the information in this graph to answer questions 1 and 2.
(7 pts)1. What is the median of this set of data?
.29
.30
.5
.31
A
B
C
D
E
(7 pts)2. What is the IQR for this set of data?
.17
.18
.36
.21
.15
A
B
C
D
E
(7 pts)3. An exam was given to fifthgrade students, and the scores were normally distributed with mean 62
and standard deviation 12.
What percent of students had scores between 50 and 98?
. 83.85%
.68%
.95%
. 81.50%
. None of the above
A
B
C
D
E
Ages of 58 people attending a waterquality lecture.
16
20
19
37
36
35
18
17
21
25
24
23
22
26
30
29
28
27
31
34
33
32
39
38
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View Full DocumentMath 13800
Exam 3
Spring 2010
2
(8 pts)4. What type of data, categorical or measurement, is the response to each situation?
a) number of credit hours taken this semester
b) favorite music style
c) number for your birth month
Give an example of measurement data for the context of a shopping trip.
(8 pts)5. The pie graph shown here shows how letter grades were distributed on an exam.
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 Fall '09
 Math, Standard Deviation, 6%, GPS devices, Jodie, Quality Motors, Pleasantville School District

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