The number of hours of sleep per night averaged by a group of students is approximately normally distributed with mean and standard deviation . What is the probability that a student selected at random had more than 7.5 hours of sleep? Round to 2 decimal places.

Question

The number of hours of sleep per night averaged by a group of students is approximately normally distributed with mean  and standard deviation  . What is the probability that a student selected at random had more than 7.5 hours of sleep? Round to 2 decimal places.

Quizplus · Accepted Answer

The Answer of The number of hours of sleep per night averaged by a group of students is approximately normally distributed with mean  and standard deviation  . What is the probability that a student selected at random had more than 7.5 hours of sleep? Round to 2 decimal places.

The Number of Hours of Sleep Per Night Averaged by a Group