The probability is $\frac{1}{2}$ that a certain coin will turn up heads on any given toss. If the coin is to be tossed three times, what is the probability that on at least one of the tosses the coin will turn up tails?

Q. Four fair coins are tossed simultaneously. The probability that at least one head and at least one tail turn up is

Q. Three coins are tossed simultaneously. Find the probability that at least two heads turn up.

Q. If two coins are tossed then find the probability of the event that at least one tail turns up is:

Q. Three coins are tossed simultaneously $100$ times with the following frequencies of different outcomes- no head$-14$ one head$-38$ two heads$-36$ three heads$-12$ if the three coins are simultaneously tossed again,compute the probability of: (1). $2$ heads coming up. (2). $3$ heads coming up. (3). at least one head coming up. (4).getting more heads than tails. (5). getting more tails than heads.

Q. If two coins are tossed, then find the probability of the event that at least one tail turns up.