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The probability that a person visiting a zoo will see the giraffee is 0.72, the probability that he will see the bears is 0.84 and the probability that he will see both is 0.52.

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Question

The probability that a person visiting a zoo will see the giraffee is 0.72, the probability that he will see the bears is 0.84 and the probability that he will see both is 0.52.

Options

  • True

  • False

MCQ
True or False
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Solution

This statement is False.

Explanation:

Given that: P(to see giraffee) = 0.72

P(to see bears) = 0.84

P(to see both giraffee and bears) = 0.52

∴ P(to see giraffee or bear) = P(to see giraffee) + P((to see bear) – P(to see both)

= 0.72 + 0.84 – 0.52

= 1.04 which is not possible.

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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 30 | Page 301

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