[" 19.If an unbiased coin is tossed "7" times,find the probability of "],[" obtaining "4" 'Heads' and "3" "Tails'."]

If an unbiased coin is tossed 7 times, find the probability of obtaining 4 'Hence and 3 'Tails'.

A coin is tossed 6 times. Find the probability of obtaining 4 heads.

A coin is tossed 6 times. Find the probability of obtaining no head.

A unbiased coin tossed three times. Find the probability of getting 1 head

A coin is biased so that the probability of falling head when tossed is (1)/(4) . If the coin is tossed 5 times , the probability of obtaining 2 heads and 3 tails is

IF an unbiased coin is tossed the probability of getting a tail is …………

Two unbiased coins are tossed one time. Find the probability of occuring two tails?

An unbiased coin is tossed eight times. The probability of obtaining at least one head and at least one tail is :

An unbiased coin is tossed eight times. The probability of obtaining at least one head and at least one tail is :