Used cars, cheap! A used-car salesman has 28 cars in his inventory, with prices ranging
from $11,500 to $25,000. For a Labor Day sale, he reduces the price of each car by $500.
What effect will this reduction have on each of the following characteristics of the resulting
distribution of price?
a. Shape
b. Mean and median
c. Standard deviation and interquartile range (IQR)