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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.

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

A coin is tossed until a head appears or tail appears 4 times in succession. Find the probability getting a head it is known that tail occured at least twice .

A coin is tossed until a head appears. What is the expectation of the number of tosses required ?

A coin is tossed until a head appears. What is the expectation of the number of tosses required ?

A coin is tossed until a tail appears what is the expectation of the number of tosses ?

A coin is tossed repeatedly until a head comes up. Write the sample space.

A coin is tossed until a head appears or it has been tossed 3 times. Given that head doesn't appear on the first toss, the probability that coin is tossed 3 times is