Answer
a) The fly is more likely to land on the blank grid.
b) No, the fly is not more likely to land on one figure than on the other.
Work Step by Step
a) The area of the blank grid is 84 units$^{2}$, while the total area of the three figures is 36 units$^{2}$. The area for the blank space is much larger than the total area taken up by the figures. Therefore, it's more likely the fly will land on the blank grid.
b) All three figures have the exact same area. As a result, the fly is equally likely to land on one figure as it is on the other.
