N fair coins are flipped once. The probability that at most 2 of the coins show up as heads is `1/2`.Find the value of N.

Three coins are tossed once. Find the probability of getting at most two heads.

If a fair coin is tossed 8 times. Find the probability of at most five heads.

A fair coin is tossed 10 times. Find the probability of at most 6 heads .

If a fair coin is tossed 10 times, Find the probability of At most 6 heads.

If a fair coin is tossed 10 times, find the probability of: at most six heads

A bag contains 2n+1 coins.It is know that nn of these coins have a head on both of its sides.Whereas the rest of the coins asew fair . A coin is picked up fat random from the bag and is tossed.If the probablity that the toss results in head is (31)/(42) .find the value of n