Use the following information for questions:
The average time taken to complete an exam, X, follows a normal probability distribution with mean = 60 minutes and standard deviation 30 minutes.
-What is the probability that a randomly chosen student will take at least an hour to complete the exam?
A) 0.1587
B) 0.5000
C) 0.8413
D) 0.9772

Question

Use the following information for questions:
 The average time taken to complete an exam, X, follows a normal probability distribution with mean = 60 minutes and standard deviation 30 minutes.
-What is the probability that a randomly chosen student will take at least an hour to complete the exam?
A) 0.1587
B) 0.5000
C) 0.8413
D) 0.9772

Quizplus · Accepted Answer

The Answer of Use the following information for questions:
 The average time taken to complete an exam, X, follows a normal probability distribution with mean = 60 minutes and standard deviation 30 minutes.
-What is the probability that a randomly chosen student will take at least an hour to complete the exam?
A) 0.1587
B) 0.5000
C) 0.8413
D) 0.9772

Use the Following Information for Questions