## Conceptual Physics (12th Edition)

Each of the 36 possibilities (called "microstates" in thermodynamics) is equally likely, but a total of seven is most likely to be observed because there are more combinations/microstates that give seven than any other total. Six of the 36 possible combinations result in a total of seven, showing that the probability of rolling a seven with a pair of fair dice is $\frac{1}{6}$.