Friday, September 23, 2011

Problem of the Day 23 Sept 2011


Darryl has a six-sided die with faces 1; 2; 3; 4; 5; 6. He knows the die is weighted so that one face
comes up with probability 1/2 and the other fi ve faces have equal probability of coming up. He
unfortunately does not know which side is weighted, but he knows each face is equally likely
to be the weighted one.

He rolls the die 5 times and gets a 1; 2; 3; 4 and 5 in some unspecifi ed order. Compute the probability that his next roll is a 6.



Please like us on facebook.

3 comments: