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AAKASH SERIES-RANDOM VARIABLE -PRACTICE EXERCISE
- A random variable X has its range {0,1,2,3,………}. If P(X=r)=(c(r+1))/(2...
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- If it rains a dealer in rain coats can earn Rs . 500 Rs a day . If it ...
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- A box contains 6 tickets. Two of the tickets carry a price of Rs. 5//-...
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- For a dealer in a consignment of umbrellas , the probabilty of getting...
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- In a binomial distribution n=12, p=1//3. Then mean and variance are
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- In a binomial distribution, mean is 5 and the variance is 4 . The numb...
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- If the mean and variance of a binomial variate X are (4)/(3),(8)/(9) ...
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- If for a binomial distribution the mean is 6 and the standdard deviati...
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- A box contains 4 red and 8 white balls . If 4 balls are drawn one by o...
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- Probability of happening of an event in an experiment is 0.4 . The pro...
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- In a binomial distribution the mean is 12 and the standard deviation i...
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- A fair coin is tossed a fixed number times . If the probability of get...
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- A coin is biased so that the probability of falling head when tossed i...
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- If 10 coins are tossed then mean and variance of x and x denotes the n...
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- A die is thrown twice. If getting a number greater than four on the di...
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- Three dice are rolled 4 times . The probability of getting sum 17 exac...
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- Two cards are drawn successively with replacement . The mean of number...
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- The standard deviation of a poisson distribution is 4 then its mean is
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- If a random variable X has a Poisson distribution such that P(X=1)=P(X...
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- In a Poisson distribution P(X=0) =2P(X=1) then the standard deviation ...
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