Answer
a)Rectangle, yes.
b)Not normal.
Work Step by Step
a )If the lottery works correctly, then each digit should be equally likely and hence the distribution should be uniform.
Then the shape of the histogram should roughly be a rectangle (each bar has to have roughly the same height).
The given distribution is approximately a rectangle and hence approximately uniform.
b) If the histogram is approximately bell.shaped then the distribution is normal, which here is not true, hence it is not normal.
