Question 427771: A pair of fair dice is rolled. What is the probability that the sum of the numbers falling uppermost is less that 9 given that at least one of the number is a 6?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A pair of fair dice is rolled. What is the probability that the sum of the numbers falling uppermost is less than 9 given that at least one of the number is a 6?
-------
Pairs that meet the conditions: (6,1)(6,2);(1,6)(2,6)
----
Pairs with at least one 6:
(6,1)(6,2)(6,3)(6,4)(6,5)(6,6)
(1,6)(2,6)(3,6)(4,6)(5,6)
---
P(sum< 9|at least one 6) = 4/11
=====================================
Cheers,
Stan H.
=====================
|
|
|
