Question

The correlation between variables x and y is .50. You compute a least-squares regression line with this bivariate data. Which of the following must be true?

The r2 is greater than .50.

The regression constant (or y-intercept) is positive.

The regression coefficient is positive.

The slope of the regression line is negative.

All of the above.

Answer 1

@mathmath333

Answer 2

@myininaya

Answer 3

i think the fourth option is false here

one of the 1st ,2nd or 3rd option might be true