00:01
Given in the krebs game, a player rolls two six -sided dice and we assume that the two dice are fair.
00:10
And the score on each row is the sum of the two dice.
00:13
On the first row, a player can win automatically by rolling a 7 or 11, or lose automatically by rolling a 2, 3 or 12.
00:24
Or play on by rolling any other score besides 2, 3, 7, 11 or 12.
00:31
Now we want to find probability a player will lose on their first row.
00:35
That is, probability the sum is 2, 3 or 12.
00:46
I'm going to draw a table here.
01:07
I'm going to put the score on one die.
01:10
1, 2, 3, 4, 5, 6.
01:13
And the score on the other die will be 1, 2, 3, 4, 5, 6...