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Probability — Maths STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceMathsProbability2 Marks
MCQ
If A and B are two events such that $A \subseteq B$, then $P\left(\frac{B}{A}\right)=$
  • A
    $0$
  • ✓
    1
  • C
    $1 / 2$
  • D
    $1 / 3$
✓

Answer

Correct option: B.
1
(B)
Since, $A \subseteq B \Rightarrow A \cap B = B \cap A = A$
Hence, $P \left(\frac{ B }{ A }\right)=\frac{ P ( B \cap A )}{ P ( A )}=\frac{ P ( A )}{ P ( A )}=1$

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