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A bag contains 4 red and 6 black balls. ...

A bag contains 4 red and 6 black balls. Three balls are drawn at random. Find the probability distribution o the number of red balls.

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RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions
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  14. Let X represent the difference between the number of heads and the ...

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  15. From a lot of 10 bulbs, which includes 3 defectives, a sample of 2 bul...

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  16. The probability distribution of a random variable X is given below: X ...

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