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Question 2: Use the following information to complete Exercises 3 – 5: A political scientist took...

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Basic Math

Question 2: Use the following informationto complete Exercises 3 – 5: A political scientist took a poolof the political attitudes of the students in one of his classes.Students were asked to rate, on a scale from 1 to 11, “What is youroverall political attitude?”, where 1 = extremely liberal and 11 =extremely conservative. The following frequency analysis resulted:(1.5 points)

Political Attitude Score

f

rf

cf

crf

11

1

.015

67

1.000

10

3

.045

66

.985

9

14

.209

63

.940

8

6

.090

49

.731

7

2

.030

43

.642

6

10

.149

41

.612

5

9

.134

31

.463

4

3

.045

22

.328

3

11

.164

19

.284

2

7

.104

8

.119

1

1

.015

1

.015

4. Compute the values that define the followingpercentiles:

a. 25th            b. 50th            c.57th            d. 75th    

What is the interquartile range of the data in #4?

6. Compute the exact percentile ranks that correspondto the following scores:


a. 3            b.5            c.7            d. 9

  

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