Three friends shared a pizza, and each person ate their share at different times in the afternoon. if friend a came first and ate 1/4 of the pizza, and friend b ate 1/3 of what was left by friend a, how much was left for friend c?

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.