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True or false: The Pearson's correlation coefficient of +0.4 shows a stronger linear association than a...

True or false: The Pearson's correlation coefficient of +0.4 shows a stronger linear association than a correlation coefficient of -0.4

True or false: If the value of the Pearson's correlation coefficient between two variables is equal to -0.7, it means that 49% of the variability in one variable can be explained by the other.

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Answer #1

Solution :

1)

False

The Pearson's correlation coefficient of +0.4 shows a same linear association than a correlation coefficient of -0.4

2)

True

R square = (-0.7)2 = 0.49

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