A scatter plot of N=200N=200N=200 points shows r=0.6r=0.6r=0.6. If x′=2x+1x' = 2x+1x′=2x+1 and y′=−3y+4y' = -3y+4y′=−3y+4, what is the correlation r′r'r′?
r′=0.6r' = 0.6r′=0.6
r′=−0.6r' = -0.6r′=−0.6
r′=−1.8r' = -1.8r′=−1.8
r′=0.36r' = 0.36r′=0.36