Answer:
Option 3 is right
Step-by-step explanation:
Given that Willis has noticed that when time is one of the variable then time has to be independent variable.
Time cannot be a dependent variable and the change of time determines the change of dependent variable.
In the scatter plot always independent variable is marked on horizontal axis and dependent variable on y axis.
But in the given graph contrary to the above, time is marked on y axis which shows that distance is independent and time is dependent.
i.e. It invalidates his hypothesis because it is possible for the time to take a trip depends on the distance traveled during the trip.
