lower upper middle (lower+upper)/ so now let' start the implementation of this process in python we will do exactly the same mathsbut this time with python syntax first we set the end points for the interval of uncertainty and attach names to the two -values the names lower and upper are attached to the end pointslower upper we establish the -value of the mid-point and attach the name middle to itmiddle (lower+upper)/ this is exactly where we started last timebut we have attached python names to the values