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If A and B are two candidates seeking admission in an engineering College. The probability that A is selected is .5 and the probability that both A and B are selected is at most .3. Is it possible

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Question

If A and B are two candidates seeking admission in an engineering College. The probability that A is selected is .5 and the probability that both A and B are selected is at most .3. Is it possible that the probability of B getting selected is 0.7?

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  • True

  • False

MCQ
True or False
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Solution

This statement is False.

Explanation:

Given that P(A) = 0.5 and P(A ∩ B) ≤ 0.3

Now P(A) × P(B) ≤ 0.3

⇒ 0.5 × P(B) ≤ 0.3

⇒ `P(B) ≤ 0.3/0.5`

⇒ P(B) ≤ 0.6

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Chapter 16: Probability - Exercise [Page 301]

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NCERT Exemplar Mathematics Exemplar [English] Class 11
Chapter 16 Probability
Exercise | Q 33 | Page 301

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