Answer:
The probability that at least two of the coins will be TAILS is one-half.
Step-by-step explanation:
The probability of an event, E is the ratio of the number of favorable outcomes to the total number of outcomes.

The experiment consisted of tossing three coins together.
The possible outcomes are as follows:
S = {(H, H, H), (H, H, T), (H, T, H), (T, H, H), (H, T, T), (T, H, T), (T, T, H), (T, T, T)}
n (S) = 8
The outcomes where we get at least two Tails are:
<em>s</em> = {(H, T, T), (T, H, T), (T, T, H), (T, T, T)}
n (<em>s</em>) = 4
Compute the probability that at least two of the coins will be TAILS as follows:


Thus, the probability that at least two of the coins will be TAILS is one-half.