The sample correlation coefficient is an estimator of the population correlation coefficient and measures O the causal effect of one random variable on the other one. O the covariance between two...

Extracted text: The sample correlation coefficient is an estimator of the population correlation coefficient and measures O the causal effect of one random variable on the other one. O the covariance between two random variables. how well their scatterplot is approximated by a straight line. the causal relationship between the two random variables. Question 56. The Gauss-Markov theorem is a proposition that establishes the assumptions under which OLS estimation generates the best linear unbiased estimators of the sample coefficients of a linear regression model. True False