I have the following question.
We have a person who takes n steps with 50% chance of taking a step forward and 50% chance of taking a step backwards. What is the limit (for n -> inf) of the chance that the position X after n steps is lager or equal to √n ?
lim P(X >= √n)
We have a person who takes n steps with 50% chance of taking a step forward and 50% chance of taking a step backwards. What is the limit (for n -> inf) of the chance that the position X after n steps is lager or equal to √n ?
lim P(X >= √n)