‹ Back to the paper
The following table shows the Mean, the Standard Deviation and the coefficient of correlation of…
The following table shows the Mean, the Standard Deviation and the coefficient of correlation of two variables $x$ and $y$.
Calculate:
| Series | $x$ | $y$ |
|---|---|---|
| Mean | 8 | 6 |
| Standard deviation | 12 | 4 |
| Coefficient of correlation | 0.6 |
(a)
the regression coefficients $b_{xy}$ and $b_{yx}$
(b)
the probable value of $y$ when $x = 20$
Answer
No answer yet.
From ISC 2023 Mathematics Paper 1, question 22(i).