If four unbiased coins are tossed, find the probability that there should be two talls.

If four coins are tossed, find the probability that there shall be two heads and two tails.

If four coins are tossed,find the probability that there shall be two heads and two tails.

Two unbiased coins are tossed. Find the probability of getting two heads

Three unbiased coins are tossed. Find the probability of getting atleast two heads.

Three unbiased coins are tossed. Find the probability of getting one head and two tails,

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

Four unbiased coins are tossed. If the probability of getting odd number of tails is p, then the value of 16p -

5 unbiased coins are tossed at random. The probability of getting at least two tails is -

Three unbiased coins are tossed once. Find the probability of getting : one head or two heads.