In a hostel 60% of the students read Hin...

In a hostel 60% of the students read Hindi news paper, 40% read English newspaper and 20% read both Hindi and English newspapers. A student is selected at random.

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In a hostel, 60% of the students read Hindi newspaper, 40% read English newspaper and 20% read both Hindi and English newspaper. A student is selected at random, if she reads Hindi newspaper, then the probability she reads English newspaper is

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In a school 25% students are failed in Mathematics, 15% in Physics and 5% students fail in both Mathematics and Physics. A student is selected at random. (i) If he is fail in Physics, find the probability that he is fail in Mathematics. (ii) If he is fail in Mathematics, find the probability that he in fail in Physics. (iii) Find the probability that he is fail either in Mathematics or in Physics.

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In a class, 30% students study English, 15% study Hindi and 10% study both English and Hindi. One student is selected at random. Find the probability that (i) He studies English if it known that he Hindi (ii) He studies Hindi if it is known that he studies English

NAGEEN PRAKASHAN ENGLISH-PROBABIILITY-Exercise 13 B

If A and B are independent events such that P(A)=0.4 and P(B)=0.5, the...
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Given that the events A and B are such that P(A)=1/2, P(AuuB)=3/5a n d...
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If A and B are independent events such that P(A)=0.3 and P(B)=0.5, the...
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If A and B are two events such that P(A) = (1)/(4), P(B) = (1)/(2) and...
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If A and B are two independent events, then the probability of occur...
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A and B are two events such that P(A)=3/5, P(B)=3/10 and P(AuuB)=1/2 ...
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There are 10 black and 8 white balls in a bag. Two balls are drawn wit...
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A card is drawn from a well shuffled pack of 52 cards . In which of th...
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The probabilities that A and b can solve a problem independently are 1...
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Three cards are drawn one by one without replacement from a well shuf...
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In three throws of a dice, find the probability of getting odd number ...
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In a hostel 60% of the students read Hindi news paper, 40% read Englis...
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A speaks truth in 75% and B in 80% of the cases. In what percentage of...
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The odds in favour of A whose age is 45 years will alive upto 60 years...
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In a company there are two vacancies. A man and his wife come for inte...
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A bag contains 50 tickets numbered 1, 2, 3, .., 50 of which five are ...
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In a company there are two vacancies. A man and his wife come for inte...
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