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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola
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Chapter 10, Problem 5 CQQ

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QUESTION:

Problem 5 CQQ

The exercises are based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic

138

130

135

140

120

Diastolic

82

91

100

100

80

Given that the linear correlation coefficient r is found to be 0.585, what is the proportion of the variation in diastolic blood pressure that is explained by the linear relationship between systolic and diastolic blood pressure?

Questions & Answers

QUESTION:

Problem 5 CQQ

The exercises are based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic

138

130

135

140

120

Diastolic

82

91

100

100

80

Given that the linear correlation coefficient r is found to be 0.585, what is the proportion of the variation in diastolic blood pressure that is explained by the linear relationship between systolic and diastolic blood pressure?

ANSWER:

Solution 5 CQQ

Data set is the paired data of the systolic blood and diastolic pressure measure of the same person obtained by the second year medical student .The recordings are listed in the form of the following table.

Systolic

138

130

135

140

120

Diastolic

82

91

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