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Find the probability distribution of X; ...

Find the probability distribution of `X`; the number of heads in two tosses of a coin ( or a simultaneous toss of two coins).

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Find the probability distribution for number of heads obtained in two tosses of a coin.

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RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions
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  15. Four cards are drawn simultaneously from a well shuffled pack of 52...

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  17. Five defective mangoes are accidentally mixed with 15 good ones. Four ...

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  18. Two dice are thrown together and the number appearing on them noted. X...

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