Sample space is usually represented by the capital letter S. Here are some examples of sample spaces:
 A fair coin is flipped twice in a row. The possible outcomes are that we get a head on the first flip & a head on the second flip, a head on the first & a tail on the second, a tail on the first & a head on the second, or a tail on the first & a tail on the second. Therefore, the sample space, S, can be described like this: S = {HH, HT, TH, TT}.
 A die is rolled and the number on the top face is recorded.
All the integers from 1 to 6 are possible. So S = {1, 2, 3, 4, 5,
6}.
 A pair of dice are rolled and the sum of the numbers on the
top faces is recorded. The smallest sum is 1 + 1 = 2; the largest is 6 + 6 = 12;
and all the integers inbetween are possible. So S = {2, 3, 4, ..., 11,
12}.
