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Provide solution for RD Sharma Maths Class12 Chapter 30 Probability Exercise Fill in the Blanks Question, Question 8.

Answers (1)

Answer:  1

Given:

If A and B are tho enends such that A\subseteqq B, then
P\left ( \frac{A}{B} \right )=....

Hint:

Using P\left(\frac{B}{A}\right)=\frac{P(A \cap B)}{P(A)}

Explanation:

Wit A and B ane two evends.
We are given A\subseteqq B
\Rightarrow \mathrm{P}(\mathrm{A} \cap \mathrm{B})=\mathrm{P}(\mathrm{A})

We know ,

\left(\frac{B}{A}\right)=\frac{P(A \cap B)}{P(A)}

 But ,

\begin{aligned} &\mathrm{P}(\mathrm{A} \cap \mathrm{B})=\mathrm{P}(\mathrm{A}) \\ &\therefore \mathrm{P}\left(\frac{\mathrm{B}}{\mathrm{A}}\right)=\frac{\mathrm{P}(\mathrm{A})}{\mathrm{P}(\mathrm{A})}=1 \\ &\mathrm{P}\left(\frac{\mathrm{B}}{\mathrm{A}}\right)=1 \end{aligned}

 

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