The U.S. Weather Bureau has provided the following information about the total annual number of reported tornadoes in the United States for the years 1956 to 1975:

505 856 564 604 616 697 657 464 704 906

585 926 660 608 653 888 741 1,102 947 918

The average number of tornadoes per reported year is 730, and the standard deviation of the set is 168. If one of the numbers in the data set is chosen at random, what is the probability that the number is less than the median and is not within one standard deviation of the mean?

A. 10%

B. 15%

C. 25%

D. 30%

E. 40%

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