The Y-intercept (b0) represents the a. variation around the sample regression line. b. change in estimated Y per unit change in X. c. predicted value of Y when X = 0. d. predicted value of Y.

Pls! does anybody know a shortcut for answering these types of questions in the future?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )