A Tire Company Tested a Particular Model of Super Radial

Multiple Choice

A tire company tested a particular model of super radial tire and found the tires to be normally distributed with respect to wear. The "average" (mean) tire wore out at 44,000 miles, and the standard deviation was 6,500 miles. Approximately what percent of the tires are likely to wear out before 36,200 miles? ​

A) 33 %
B) 28 %
C) 23 %
D) 3 %
E) 13 %