Mathematics · Statistics
The correct formula to calculate Karl Pearson's coefficient of correlation (r) for deviation taken from actual mean in ungrouped data is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1r = Σxy√(Σx2 · Σy2)✓
- 2r = Σxy√(Σx2 - Σy2)
- 3r = Σx + y√(Σx2 · Σy2)
- 4r = Σxy√(Σx2 + Σy2)
Correct answer
r = Σxy√(Σx2 · Σy2)
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