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Probability — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSProbability1 Mark
Question
State whether the statements are True or False.
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.
✓

Answer

False.
Solution:
P(to see giraffe or bear) = P (giraffe) + P (bear) - P(giraffe and bear)
=0.72 + 0.84 - 0.52 = 1.04
which is not possible.

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