alleryIf r = 0.8, sigma_x = 4, sigma_y = 5, then byx equals
A1.0
B0.5
C0.64
D1.25
Answer & Solution
Correct answer: A. 1.0
1. byx = r * (sigma_y / sigma_x).
2. = 0.8 * (5 / 4).
3. = 0.8 * 1.25.
4. = 1.0.
_Source: ICAI BoS Foundation Paper 3, Ch 17 'Regression', p.11_
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