Question

What is the probability of rolling doubles on 2 dice

Answer 1

Answer:

$P = \frac{1}{6}$

Step-by-step explanation:

For each die there are S = 6 possible results. Therefore the amount of possible results when throwing 2 dice is:

$S = 6 * 6 = 36$ possible results.

Now, the possible ways to get a double are 6:

$\{(1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)\}$

By definition the probability of an event is:

$P = \frac{Number\ of\ favorable\ results}{Number\ of\ possible\ results}$

Number of favorable results = 6

Number of possible results = 36

Then:

$P = \frac{6}{36}$

Simplifying we get: $P = \frac{1}{6}$

Answer 2

2/12 or simplified 6