For each variable presented, state whether you would expect a histogram of the data to be bell-shaped,

Question:

For each variable presented, state whether you would expect a histogram of the data to be bell-shaped, uniform, skewed left, or skewed right. Justify your reasoning.
(a) Number of alcoholic drinks consumed per week
(b) Ages of students in a public school district
(c) Ages of hearing-aid patients
(d) Heights of full-grown men