Problem 1
The law \(y=a x^{2}+b x\) converted to linear form is
Problem 10
Given \(\left[\begin{array}{llll}x: & 0 & 1 & 2 \\ y: & 0 & 1.1 & 2.1\end{array}\right]\) then the straight line of best fit is
Problem 15
If \(y=2 x+5\) is the best fit for 8 pairs of values \((x, y)\) by the method of least squares and \(2 y=120\), then \(\Sigma X=\) (a) 35 (b) 40 (c) 45 (d) 30 .
