‹ Back to the paper
Choose the correct option.
If the regression line of on is, and on is, , then the correlation coefficient ‘r’ is equal to:
If the regression line of $x$ on $y$ is, $9x + 3y - 46 = 0$ and $y$ on $x$ is, $3x + 12y - 7 = 0$, then the correlation coefficient ‘r’ is equal to:
- (a)$-\frac{1}{12}$
- (b)$\frac{1}{12}$
- (c)$-\frac{1}{2\sqrt{3}}$
- (d)$\frac{1}{2\sqrt{3}}$
Answer
No answer yet.
From ISC 2022 Mathematics - Specimen paper (Semester 2), Paper 1, question 12(i).
Check your working with the Regression lines calculator: both regression lines, b_yx, b_xy and r from data, summary sums or the two lines; with estimates.