Although the correlation coefficient measures the strength of a linear relationship, it does not tell us about the mathematical relationship between the two variables.
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Q. 2If the data points form a straight horizontal or vertical line, there is strong correlation.
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Q. 3The closer the absolute value of r is to one, the better will be the predictions made using the equation of the line of best fit, provided the prediction is made for x values between the smallest value of x and the largest value of x in the observed data.
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Q. 4When both variables from a bivariate set of data are quantitative, the appropriate measure of linear relationship is the coefficient of linear correlation.
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Q. 5If two variables are not linearly correlated, then they are not related.
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Q. 6If there is high positive linear correlation between two variables, then there is a strong relationship between the two variables.
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