For each of the following shapes, come up with at least 1 example of a quantity x (a random variable) whose histogram you expect to be approximately
(a) Bell-shaped (symmetric)
(b) Skewed (one way or the other)
(c) Exponential-looking
(d) Bimodal
Describe the quantity clearly, and explain in words why you expect the particular shape. If you have data to support your expectation, then go ahead and show the histogram. (For this problem, x may be continuous or discrete)