Mathematics · Correlation and Regression
Which of the following statements represent valid theoretical characteristics regarding Karl Pearson's correlation coefficient? (i) Perfect correlation gives a straight line on the scatter diagram. (ii) Non-linear relationship scatter plot will not form a straight line. (iii) Each variable is affected by a large number of independent contributory causes so as to produce a normal distribution. (iv) The operating forces are strongly dependent and causally linked across variables.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(ii), (iii) and (iv)
- 2(i), (iii) and (iv)
- 3(i), (ii) and (iv)
- 4(i), (ii) and (iii)✓
Correct answer
(i), (ii) and (iii)
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