You are a sailor on a roman galley, and you are lost in the atlantic. you have a compass, an anchor, and good fishnets, and limes. every day you spin a drachma, and if heads comes up (p=.7) you sail north for 1 league, if the owl and olive branch come up (p=.3) you sail east for 1 league. assume when you stop each day you can anchor and don’t move a) at n days, what is the exact probability distribution of the number of leagues east
