Expression 3: "N" equals ceiling left parenthesis, StartFraction, 1 minus "p" Over "p" "q" , EndFraction , right parenthesisN=ceil1−ppq
3
Expression 4: "P" left parenthesis, "n" , right parenthesis equals left parenthesis, Start product from "k" equals 0 to "n" minus 1, end product, left parenthesis, 1 minus "p" left parenthesis, 1 plus "k" "q" , right parenthesis , right parenthesis , right parenthesis times "p" left parenthesis, 1 plus "n" "q" , right parenthesisPn=n−1∏k=01−p1+kq·p1+nq
4
Expression 5: "E" equals Start sum from "i" equals 1 to "N" , end sum, left parenthesis, "i" times "P" left parenthesis, "i" minus 1 , right parenthesis , right parenthesisE=N∑i=1i·Pi−1
5
Expression 6: StartFraction, 1 Over "p" , EndFraction1p