quantitative reasoning model joe has two routes he can drive to work. step 1: understand the problem he wants to learn which route is the fastest. step 2: identify variables and assumptions the time to drive each route varies a little every day. joe assumes that each route will be open and safe to drive. step 3: apply quantitative tools over the next two weeks joe alternated driving the two routes. he timed the length of his drive on each route. he calculated the mean and standard deviation of the times for both routes. route 1 route 2 mean 25.2 minutes 25.8 minutes standard deviation 1.8 minutes 8.9 minutes step 4: make an informed decision which route has the possibility of a very short amount of time to drive to work? route 1 route 2 which route results in the most consistent times? route 1 route 2 which route is more likely to take a very long time on occasion? route 1 route 2 which route (1 or 2) do you think joe should choose? route number step 5: evaluate your reasoning under which of the following circumstances should joe re-evaluate his decision? (mark all that apply) the installation of traffic lights on the route he has chosen. the number of vehicles on the routes change. joe changes job locations. road construction on the route he has chosen.
