Keep in mind that certain distributions, such as exam scores or some physical characteristics for specific age and gender groups, naturally follow a normal shape. Other distributions are naturally skewed left or have low outliers if there tend to be relatively few values that are unusually low compared to the rest. Yet other distributions are naturally skewed right or have high outliers if there tend to be relatively few values that are unusually high compared to the rest. Decide if each of the following variables is most likely to have a shape that is approximately normal, or skewed left/low outliers, or skewed right/high outliers:
a. Math SAT scores
b. Number of credits taken by a large group of students, including part-time and full-time
c. Number of minutes that students spend exercising on a given day
d. Number of minutes that students spend watching TV on a given day
e. Ages of students' fathers
f. Heights of students' mothers
g. Number of siblings that students have
h. How much money students earned the previous year