# Grand Canyon Chapter 6 & 7 Correlation Coefficient Statistics Questions

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FlzcngulCflpurq

Mathematics

Grand Canyon University

## Description

Complete the following exercises located at the end of each chapter and put them into a Word document to be submitted as directed by the instructor.

Show all relevant work; use the equation editor in Microsoft Word when necessary.

1. Chapter 6, numbers 6.7, 6.10, and 6.11
2. Chapter 7, numbers 7.8, 7.10, and 7.13

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Hello,Attached find the completed work together with the plagiarism report. Go through it and in case you need any corrections kindly let me know.All the best.

Running head: END OF CCHAPTER QUESTIONS

End of Chapter questions

Name
Institutional Affiliation

Date Submitted

1

2

END OF CHAPTER QUESTIONS
Question 6.7
Solution:

-

An almost linear trend can be observed from the scatterplot above.

The correlation coefficient

x

y

xy

x2

y2

64

66

4224

4096

4356

3

END OF CHAPTER QUESTIONS

Total

-

40

79

3160

1600

6241

30

98

2940

900

9604

71

65

4615

5041

4225

55

76

4180

3025

5776

31

83

2573

961

6889

61

68

4148

3721

4624

42

80

3360

1764

6400

57

72

4104

3249

5184

451

687

33304

24357

53299

The correlation coefficient is given by:

𝑛(∑ 𝑥𝑦)−(∑ 𝑥)(∑ 𝑦)

r=

√𝑛{(∑ 𝑥 2 )−(𝑥)2 }{√𝑛(∑ 𝑦 2 )−(∑ 𝑦)2

rx y...

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Anonymous
Really great stuff, couldn't ask for more.

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