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Suppose you hear that conscientious people are more likely to get regular health checkups. Which of the following correlations between conscientiousness and getting checkups would probably support this claim?
A. R = .03
B. R = .45
C. R = −.35
D. R = −1.0

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Answer: B. R= 0.45

Explanation: 'r' usually referred to as the correlation coefficient used to measure the strength and direction of the statistical relationship or correlation between two linear variables. It ranges between -1 to 1

The strength of a relationship is measured by its closeness to 1 or -1, while 0 indicates no correlation.

A positive r value shows a positive relationship that is increase on one variable leads to increase in the other while a negative r value shows a negative correlation, that is increase in one variable leads to decrease in the other and vice versa.

r value close to -1 indicates the strength of a negative correlation while r value close to 1 indicates the strength of a positive correlation.

In the scenario above, the most probable r value to indicate positive relationship between consentiousness and regular checkup is 0.45.