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Solve the following.
Mean of , mean of regression co-efficient , regression co-efficient . Find coefficient of…
Mean of $x = 53$, mean of $y = 28$ regression co-efficient $y \text{ on } x = -1 \cdot 2$, regression co-efficient $x \text{ on } y = -0 \cdot 3$. Find coefficient of correlation (r).
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From ISC 2025 Specimen Mathematics Paper 1, question 19(iii).
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.