Select the expression that is equivalent to (x^4/x^5)^3 a. x/x^2 b. x^7/x^8 c. x^12/x^15 d. x^12/x^5

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.