# Two tetrahedral dice with faces marked 1,2,3 and 4 are thrown. The score obtained is the sum of the numbers on the bottom face. Tabulate the probability distribution for the score obtained,how?

##### 1 Answer

Feb 5, 2016

For a single die, the faces have an equal probability of

For two dice, the probability of each event is

There are

#### Explanation:

The tabulation below shows all 16 events and the sums for each event. The **possible sums range from 2 through 8** .

For example, the probability that the sum equals 4 is 0.1875 because there are 3 ways to roll a sum of 4.

hope that helped