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Find the mean and variance of the distri...

Find the mean and variance of the distribution f(x) = `{(3e""^(-3x),0lt xltoo),(0,"elsewhere"):}`

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FULL MARKS-PROBABILITY DISTRIBUTIONS-Additional Problems
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  2. An urn contains 4 white and 3 Red balls. Find the probability distribu...

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  3. Find the mean and variance of the distribution f(x) = {(3e""^(-3x),0lt...

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  4. Two cards are drawn with replacement from a well shufflied deck of 52 ...

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  5. In a Binomial distribution if n = 5 and P(X=3) =2P (X=2) find p.

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  6. If the sum of mean and variance of a Binomial Distribution is 4.8 for ...

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  7. If on an average 1 ship out of 10 do not arrive safely to parts . Fin...

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  8. The overall percentage of passes in a certain examination is 80 . If s...

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  9. In a hurdle race a player has to cross 10 hurdles . The probability th...

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  10. If f(x) = {(kx^(2),0ltxlt 3),(0,"elsewhere"):} is a probability densit...

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  11. If f(x) = (A)/(pi)(1)/(16+x^(2)),0 ltx lt oo is a probability density ...

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  12. A random variable X has the following probability mass function as fol...

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  13. X is a discrete random variable which takes the values of 0,1,2 and P ...

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  14. Given E(X+C)=8 and E(X-C)=12 The value of C is

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  15. X is a random variable taking the values 3,4 and 12 with probabilites ...

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  16. Variance of the random variable X is 4 . Its mean is 2 . Then E(X^(2))...

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  17. In 5 throws of a die getting 1 or 2 is a success . Then mean number of...

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  18. The mean of a binomial distrution 5 and SD is 2, Then the value of n a...

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  19. If the mean and standard deviation of a binomial distribution are 12 a...

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  20. A box contains 6 red and 4 white balls . If 3 balls are drawn at rando...

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