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Four balls are to be drawn without repla...

Four balls are to be drawn without replacement from a box containing 8 red and 4 white balls. If X denotes the number of red balls drawn, find the probability distribution of X.

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RD SHARMA-MEAN AND VARIANCE OF A RANDOM VARIABLE -Solved Examples And Exercises
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  2. A discret random variable X has the following probability distribution...

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  8. Two cards are drawn successively with replacement from a well-shuffled...

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  12. Two cards are drawn without replacement from a well-shuffled deck of 5...

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  13. Find the probability distribution of the number of green balls drawn ...

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  14. From a lot of 10 items containing 3 defectives, a sample of 4 items id...

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  15. We take 8 identical slips of paper, write the number 0 on one of them,...

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  16. A die is loaded in such a way that an even number is twice likely to ...

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  20. Three cards are drawn successively with replacement from a well-shu...

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