Peter tries to avoid going to a party which he was invited to. To justify his absence he flips a coin and if the coin shows heads he goes. Otherwise, he rolls a die to give the party yet another chance. If the die lands on 6, he goes. Otherwise, he stays home. If Peter ends up being at the party, what is the probability that the coin he flipped showed Heads? Please keep conditional probability in mind when answering this question

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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 Peter tries to avoid going to a party which he was invited to. To justify his absence he flips a coin
and if the coin shows heads he goes. Otherwise, he rolls a die to give the party yet another chance.
If the die lands on 6, he goes. Otherwise, he stays home. If Peter ends up being at the party, what
is the probability that the coin he flipped showed Heads?

Please keep conditional probability in mind when answering this question

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