1. The problem statement, all variables and given/known data the flux of muons on the earths surface is about 100 muons per square meter per second. Estimate the probability that a muon is passing through your body this instant to within a factor of three attempt: let F = flux of muons on earths surface = 100/m^2/s let the average person occupy an area A on the earths surface. then F*A =# of muons penetrating person every second I dont really know where to go from here. if there are N "instants" in a second then FA/N gives the average # of muons passing through you in an instant? I feel i am going about this wrong, any help is appreciated.