An urn contains 3 white, 4 red and 5 bla...

An urn contains 3 white, 4 red and 5 black balls. Two balls re drawn one by one without replacement. What is the probability that at least one ball is black?

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An urn contains 3 white, 4 red and 5 black balls. Two balls are drawn one by one without replacement. What is the probability that at least one ball is black?

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RD SHARMA ENGLISH-PROBABILITY-All Questions

From a pack of 52 cards, two cards are drawn at random one after the o...
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A bag contains 20 tickets, numbered from 1 to 20. Two tickets are draw...
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An urn contains 3 white, 4 red and 5 black balls. Two balls re drawn ...
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A bag contains 5 white, 7 red and 3 black balls. If three balls are...
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A card is drawn from a well-shuffled deck of 52 cards and then a secon...
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An urn contains 10 black and 5 white balls. Two balls are drawn from ...
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Three cards are drawn successively, without replacement from a pack...
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A box of oranges is inspected by examining three randomly selected o...
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A bag contains 4 white, 7 black and 5 red balls. Three balls are drawn...
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If A and B are two events such that P(A)=0. 3 ,\ P(B)=0. 6\ a n d\ P(B...
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If P\ (A)=3/8,\ P(B)=1/2a n d\ P(AnnB)=1/4,\ fin d\ P( A // B )a n d...
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A couple has 2 children. find the probability that the both are boys i...
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Consider a random experiment in which a coin is tossed and if the coin...
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A coin is tossed twice and the four possible outcomes are assumed to b...
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A coin is tossed, then a die is thrown. Find the probability of obt...
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Two coins are tossed. What is the probability of coming up two heads i...
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In a hostel 60% of the students read Hindi news paper, 40% read Englis...
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Consider the experiment of tossing a coin. If the coin shows head, ...
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If P(A)=7/(13),\ P(B)=9/(13)a n d\ P(AnnB)=4/(13),fin d\ P(A//B)dot
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if A and B are events such that P(A)=0. 6 ,\ P(B)=0. 3\ a n d\ P(AnnB)...
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