If the monthly rent of all one-bedroom apartments in a small town are known to be normally distributed with a mean equal to $175 a month and standard deviation of $35, which of the following would be the highest individual rent that you might expect to find?
A) about $195
B) about $210
C) about $245
D) about $280
E) More information is needed to answer the question.

Question

Quizplus · Accepted Answer

In a normal distribution, most values lie within three standard deviations from the mean. The mean is $175, and three standard deviations (3 x $35) is $105. Adding this to the mean gives $280, which is the highest rent you might expect to find.

If the Monthly Rent of All One-Bedroom Apartments in a Small