Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given, and select one of the following four answer choices:
(A) Quantity A is greater.
(B) Quantity B is greater.
(C) The two quantities are equal.
(D) The relationship cannot be determined from the information given.
A symbol that appears more than once in a question has the same meaning throughout the question.
The age of 150 Reader's Digest subscribers is approximately normally distributed with a mean of 45 years and a standard deviation of 3 years.
Quantity A: The probability of randomly selecting a subscriber who is exactly 46 years old
Quantity B: The probability of randomly selecting a subscriber who is over 70 years old