Faculty in the Psychology Department at State University Consume an Average

Multiple Choice

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What proportion of faculty consumes an amount between 4 and 6 cups?​

A) 0.5468
B) 0.4972
C) 0.50
D) none of the options is correct