The Number of Hours Per Week That High School Seniors

Multiple Choice

The number of hours per week that high school seniors spend on homework is normally distributed, with a mean of 10 hours and a standard deviation of 3 hours.60 students are chosen at random.Let represent the mean number of hours spent on homework for this group.Find the probability that is between 9.8 and 10.4.

A) 0.547
B) 0.5161
C) 0.080
D) 0.1528
E) 0.3043