Question: (40%) Each of the professors in (1) has a lab on a different floor of their 4 story building. Professor X resides on the 1st floor, Y on the 2nd floor and Z on the 4th floor.

a. Is there a correlation between the speed the rats run through the maze and the floor on which their lab is?

b. Professor ’s lab is in the basement. Can you guess how fast, on average, his rats would take to complete the maze?