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By using the data , , and , find: The regression equation on . What is the most likely value of…
By using the data $\bar{x} = 25$, $\bar{y} = 30$, $b_{yx} = 1.6$ and $b_{xy} = 0.4$, find:
(a)
The regression equation $y$ on $x$.
(b)
What is the most likely value of $y$ when $x = 60$?
(c)
What is the coefficient of correlation between $x$ and $y$?
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From ISC 2017 Mathematics Paper 1, question 1(vii).