Starting at a random point on the Infinity Street, the (integer) number of blocks you need to walk to get to the first post office is X.It follows a geometric distribution, with P(X=0)=p

Suppose we ran our experiment three times:we started at three different points and had to walk 2 blocks, 3 blocks, and 3 blocks to get to a post office on our three trials.I.e. X1=2, X2=3, and X3=3

Find the parameter p with maximal likelihood.