Susan Has Been on a Bowling Team for 14 Years

Multiple Choice

Susan has been on a bowling team for 14 years. After examining all of her scores over that period of time, she finds that they follow a normal distribution. Her average score is 225, with a standard deviation of 13. If during a typical month Susan bowls 64 games, what is the probability that her average score in this month is above 227?

A) 0.1092
B) 0.4404
C) 0.5596
D) 0.8907