A journal published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several variables, including number of hours of sleep obtained in a typical day. These visually impaired students had a mean of 8.48 hours and a standard deviation of 2.07 hours. Assume that the distribution of the number of hours of sleep for this group of students is approximately normal.

Find:

P(x>12) = (Round to four decimal places as needed.)