In ordinary least squares, the fitted line makes which quantity as small as possible?
ASum of squared deviations
BLargest single deviation
CSum of raw deviations
DCount of points off line
Answer & Solution
Correct answer: A. Sum of squared deviations
Least squares minimises the total of squared vertical distances between points and the line.
Keep practising Correlation and Regression
Browse all Correlation and Regression questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
Unlike covariance, the correlation coefficient has what property?Which statement about r is always true?All points satisfy y = 3 - 2x exactly. What is the value of r?Which correlation shows the strongest linear relationship?Judge A ranks 1,2,3,4,5 and judge B ranks the same entrants 2,1,4,3,5. Find rho.Two judges give identical rankings to four contestants. What is the rank correlation?For ten items the sum of squared rank differences is 33. Find the rank correlation.Ranks of five students in two tests give a sum of squared rank differences of 4. Find Spea