A bag contains 5 black balls, 4 white ba...

A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected at random the probability that it is either red or black is

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HIMALAYA PUBLICATION-PROBABILITY-QUESTION BANK

The probability distribution of a random variable X is given below. Th...
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A random variable X takes the values 0,1 and 2. If P(X=1)=P(X=2) and P...
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A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball...
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The probability of getting qualified in IITJEE and EAMCET by a student...
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One die and a coin are tossed simultaneously, the probability of getti...
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If P(A cup B) = 0.8, P(A cap B) = 0.3, then P (bar(A)) + P (bar (B)) =
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A coin is tossed n times. The probability of getting head atleast once...
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A box $X$ contains 2 white and 3 black balls and another bag Y contain...
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A random variable X takes the values 0,1,2,3 and its means is 1.3. If ...
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A coin and a six faced die, both unbiased, are thrown simultaneously. ...
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A number n is choosen at random form S = {1,2,3,….,50} Let A = { n in ...
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Box A contains 2 black and 3 red balls while box B contains 3 black an...
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If the range of a random variable X is {0,1,2,3 …..,} with P(X = k) = ...
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Suppose n ge 3 persons are sitting in a row. Two of them are selected ...
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If the probability that A and B will die within a year are p and q r...
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If different words are found from letters of the word 'UNIVERSITY', th...
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Three letters are sent to different persons and addresses on the ...
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A bag contains 4 red, 6 white and 5 black balls. 2 balls are drawn at ...
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If two events P(A cup B) = 5/6, P(A) = 1/6, P(B) = 2/3, then A and B a...
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Let A and B be two events such that P(A) = 0.3 and P(A cup B) = 0.8. I...
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