The Typical College Freshman Spends an Average of 

Multiple Choice

The typical college freshman spends an average of  = 150 minutes per day, with a standard deviation of  = 50 minutes, on social media. The distribution of time on social media is known to be Normal. The proportion of students spending at least 2 hours on social media equals:

A) 0.726.
B) 0.964.
C) 0.928.
D) 0.072.