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RD SHARMA-MEAN AND VARIANCE OF A RANDOM VARIABLE -Solved Examples And Exercises
- From a lot containing 25 items, 5 of which are defective, 4 are, cho...
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- An urn contains 4 white and 3 red balls. Find the probability distr...
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- Two cards are drawn from a pack of well shuffled 52 cards one by one w...
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- Let X represent the difference between the number of heads and the ...
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- From a lot of 10 bulbs, which includes 3 detectives, a sample of 2 bul...
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- The probability distribution of a random variable X is given below: X ...
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- Let a pair of dice be thrown and the random variable X be the sum o...
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- In a single throw of a dice; if X denotes the number on its upper face...
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- A dealer in refrigerators estimates from his past experience the proba...
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- A salesman wants to know the average number of units he sells per sale...
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- The random variable X can take only the values 0; 1;2. Giventhat P(X=0...
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- Two dice are thrown simultaneously. If X denotes the number of sixe...
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- Two numbers are selected at random(without replacement) from the first...
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- In a meeting, 70% of the members favour and 30% oppose a certain pr...
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- A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, ...
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- Find the probability distribution of the number of success in two toss...
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- Two cards are drawn successively with replacement from a well shuffled...
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- A fair coin is tossed until a head or five tails occur. If X denote...
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- In a game, a man wins a rupee for a six and loses a rupee for any o...
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- In a group of 30 scientists working on an experiments 20 never comm...
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