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A coin is tossed until a head appears or...

A coin is tossed until a head appears or the tail appears 4 times in succession. Find the probability distribution of the number of tosses.

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RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions
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  12. Two cards are drawn from a well shuffled pack of 52 cards. Find the...

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

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