Assume a Least-Squares Regression Line Is Found to Be Y

question 55

Multiple Choice

Assume a least-squares regression line is found to be y = -5.73 + 0.282x.The coefficient of determination for these data is 0.64.What is the correlation coefficient?

• A) 0.411
• B) -0.64
• C) 0.80
• D) -0.80