a) (1.5 pts) If E{B,} - B1 = 0, then , is a(n) (biased/unbiased) estimator of B1 . (bold or highlight one). b) (1.5 pts) It is possible to observe a correlation coefficient value of r = 0 when a non-linear relationship between to quantitative variables X and Y is present (TRUE/FALSE) c) (1.5 pts) r will be an unbiased estimator of p as long as the sample size is greater than 30 (TRUE/FALSE)