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x और y का संयुक्त बंटन इस प्रकार है

x→ 1 2
y↓    
1 0.4 0.2
2 0.1 0.3

तो E(x|y = 1)                           है। 

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  1. 2 / 3
  2. 5 / 3
  3. 2
  4. 4 / 3

Answer (Detailed Solution Below)

Option 4 : 4 / 3
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Detailed Solution

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सूत्र 

E(x/y = 1) = ∑xj P(x = xy/y = 1

गणना

सूत्र के अनुसार

⇒ 1 × (0.4/0.3)

⇒ 4/3

∴ E(x|y = 1), 4/3 है। 

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