A Plant Manager Knows That the Number of Boxes of Supplies

Multiple Choice

A plant manager knows that the number of boxes of supplies received weekly is normally distributed with a mean of 200 and a standard of 20.
-What percentage of the time will the number of boxes received weekly be between 180 and 210?

A) 5328
B) 5987
C) 4913
D) 7750
E) 5332