I have solved the problem but the part d was something I did not understand. Where they got 49.24% I just have no clue how they got it can somebody please explain it to me.
I have links to the problems where they have the question and answer I am just looking for an explanation on how they got 49.24% on part d and what value they used for p.
Thanks.
two images:
imgur: the simple image sharer (http://imgur.com/FsFqXWI,KMWOzpX#0)