- #1
the riddick25
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Homework Statement
There is a drunk man who is just leaving the pub, he is so drunk that the probability of him taking a step forward is 0.5, and the probability of him taking a step backwards is also 0.5
There is a zero chance of him not taking a step.
After 20 steps, what is the probability of him being 14 steps back into the pub?
Homework Equations
Not sure
The Attempt at a Solution
I have no idea where to start for this question, so if somebody could give me a push in the right direction that would be extremely helpful