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. Refer to Exhibit 7-3.If during a typical month Susan bowls 64 games,what is the probability that her average score in this month is above 227?

A) 0.1093
B) 0.4404
C) 0.5596
D) 0.8907