Record the Death Rate from Heart Disease Per 100,000 People

Multiple Choice

Record the death rate from heart disease per 100,000 people in a group of developed countries. The distribution is roughly described by this Normal curve: From the Normal curve, we see that the standard deviation of the heart disease rate per 100,000 people is about

A) 25.
B) 65.
C) 100.
D) 200.
E) 265.