If a coin is tossed 10 times, then number of outcomes in which there are at least five consecutive heads is

When a coin is tossed two times, the number of possible outcomes is:

When a coin is tossed three times, the number of possible outcomes is:

A fair coin is tossed 6 times .The variance of number of heads is

Two coins are tossed. Find the number of outcomes of getting one head.

An unbiased coin is tossed 12 times The probability that at least 7 consecutive heads show up is K/256 then K=

If a fair coin is tossed 8 times , then the probability that it shows heads at least once is

A coin is tossed 10 times. The number of heads minus the number of tails in 10 tosses is considered as the outcome of the experiment. What is the number of points in the sample space ?