In order to reduce the number of vehicles traveling over the speed limit, the Town of Commerce recently installed on its highways automated cameras that detect speeding vehicles. While the cameras cannot detect speeding vehicles at night, since the introduction of the cameras, the number of speeding vehicles detected each day by the cameras has sharply declined. Clearly, the presence of the cameras is deterring from speeding those drivers who would otherwise speed.
Each of the following, if true, is an assumption upon which the argument depends EXCEPT:
a) The number of vehicles using the highways in Commerce has not significantly declined since the introduction of the cameras.
b) Drivers of vehicles on the highways of Commerce do not slow to the speed limit when approaching the cameras, and then exceed the speed limit after passing the cameras.
c) The cameras recently installed to detect speeding vehicles on the highways in Commerce have not critically malfunctioned since their installation.
d) Most drivers who speed on highways in Commerce have not changed their habits
recently, going from doing most of their driving during daylight hours to doing most of it at night.
e) The population of the Town of Commerce has not significantly increased over the period of time since the cameras to detect speeding vehicles were installed.
Answer: (e)
Why (e) is not an assumption?
AnuragSundriyal98
In order to reduce the number of vehicles traveling over the speed limit, the Town of Commerce recently installed on its highways automated cameras that detect speeding vehicles. While the cameras cannot detect speeding vehicles at night, since the introduction of the cameras, the number of speeding vehicles detected each day by the cameras has sharply declined. Clearly, the presence of the cameras is deterring from speeding those drivers who would otherwise speed. Each of the following, if true, is an assumption upon which the argument depends EXCEPT: a) The number of vehicles using the highways in Commerce has not significantly declined since the introduction of the cameras. b) Drivers of vehicles on the highways of Commerce do not slow to the speed limit when approaching the cameras, and then exceed the speed limit after passing the cameras. c) The cameras recently installed to detect speeding vehicles on the highways in Commerce have not critically malfunctioned since their installation. d) Most drivers who speed on highways in Commerce have not changed their habits recently, going from doing most of their driving during daylight hours to doing most of it at night. e) The population of the Town of Commerce has not significantly increased over the period of time since the cameras to detect speeding vehicles were installed. Answer: (e) Why (e) is not an assumption?
If we negate (e), we will get
The population of the Town of Commerce has significantly increased over the period of time since the cameras to detect speeding vehicles were installed.
->This will lead to increase in vehicles, so there might be increase in speedy vehicles also, and in our conclusion it is told that there is decreament in speedy vehicles.
so if this statement is not true, then our conclusion is falling apart.
Therefore this option should also be an assumption.
Can anyone tell please