12. (5 points) Approximately 330,000 people pass through Times Square on any given summer day. Suppose that the standard deviation of the number of people passing through is 30,000. What range typifies the number of people who pass through Times Square on a typical summer day? Assume that the distribution is symmetric and mound-shaped.

A. 270,000 to 330,000

B. 300,000 to 360,000

C. 270,000 to 390,000

D. 330,000 to 390,000

E. none of the above