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Event _____________ contains elements which are present in B and absent in A.(a) A or B(b) A and B(c) A but not B(d) B but not AThis question was addressed to me in an international level competition.Origin of the question is Probability topic in portion Probability of Mathematics – Class 11

Answer»

Right option is (d) B but not A

Explanation: Event “B but not A” contains ELEMENTS which are PRESENT in B but not in A.

It is represented by B-A or B∩A’.



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