In an examination 30% students have failed in mathematics, 20% of the students have failed in chemistry and 10% have failed in both mathematics and chemistry. a student is selected at random. what is the probability that (i) the student has failed in mathematics if it is known that he has failed in chemistry. (ii) what is the probability that the student has failed either in mathematics or chemistry
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the answer are -
(I). 1/5
(I). 4/5
(I). 1/5
(I). 4/5
schandrakar:
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