Explore BrainMass


Suppose you are eating at a pizza parlor with two friends. You have agreed to the following rule about who will pay the bill: Each person will toss a coin. The person who gets a result that is different from the other two will pay the bill. If all three tosses yield the same result, the bill will be shared by all. Find the probability that:

a) Only you will have to pay.
b) All three will share.

© BrainMass Inc. brainmass.com June 18, 2018, 1:43 pm ad1c9bdddf

Solution Preview

Let A = event that Friend 1 gets a head
Let B = event that Friend 2 gets a head
Let C = event that I get a head
Now P(A) = P(B) = P(C) = P(A') = P(B') = P(C') = 0.5

(a) If ...