Question

do the data appear to have a distribution that is approximately normal?
a. no, it has no obvious maximum.
b. no, it is not symmetric.
c. no, it is approximately uniform.
d. yes, it is approximately normal.

Explanation:

A normal - distribution has a bell - shaped curve, is symmetric about the mean, has a single peak (maximum). Options A, B, and C describe characteristics that go against the properties of a normal distribution. If the data has none of those non - normal characteristics, it could be approximately normal.

Answer:

D. Yes, it is approximately normal