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Choose the correct option.
If correlation coefficient , then regression lines are
If correlation coefficient $r = 0$, then regression lines are
- (a)parallel to each other.
- (b)not mutually perpendicular.
- (c)parallel to coordinate axis.
- (d)overlapping lines.
Answer
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From ISC 2023 Specimen Mathematics Paper 1, question 19(ii).
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.