(3) The two parts of this question are not related to each other. Answer both parts on one page. (a) This is a cross tabulation of two dummy variables. Total 247 82 | 329 60 633 | 693 Total | 307 715 | 1,022

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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(3)
The two parts of this question are not related to each other. Answer both parts on one page.
(a)
This is a cross tabulation of two dummy variables.
Total
247
82 |
633 |
329
60
693
Total |
307
715 |
1,022
Given that the covariance is 0.14512364, find the coefficient of correlation. Show your work. Answer with a
quantitative analysis.
(b)-
This is a tabulation of a variable recording minutes spent waiting as reported by 84 passengers.
minutes |
Freq.
Percent
Cum.
10
11.90
11.90
.5 |
10.71
22.62
11
13.10
35.71
1.5 |
2.38
38.10
60.71
66.67
22.62
3 |
4 |
5.95
3.57
70.24
14
16.67
86.90
10 |
12.5 |
15 |
7.14
94.05
2.38
96.43
3
3.57
100.00
Total |
84
100.00
Draw an exact box plot with a descriptive axis label and title. Answer with a fully labelled graph.
2952m Lo NM
Transcribed Image Text:(3) The two parts of this question are not related to each other. Answer both parts on one page. (a) This is a cross tabulation of two dummy variables. Total 247 82 | 633 | 329 60 693 Total | 307 715 | 1,022 Given that the covariance is 0.14512364, find the coefficient of correlation. Show your work. Answer with a quantitative analysis. (b)- This is a tabulation of a variable recording minutes spent waiting as reported by 84 passengers. minutes | Freq. Percent Cum. 10 11.90 11.90 .5 | 10.71 22.62 11 13.10 35.71 1.5 | 2.38 38.10 60.71 66.67 22.62 3 | 4 | 5.95 3.57 70.24 14 16.67 86.90 10 | 12.5 | 15 | 7.14 94.05 2.38 96.43 3 3.57 100.00 Total | 84 100.00 Draw an exact box plot with a descriptive axis label and title. Answer with a fully labelled graph. 2952m Lo NM
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