suppose-exam-scores-in-a-statistics-course-are-normally-distributed-with-a-mean-

Question

Suppose exam scores in a statistics course are normally distributed with a mean of $72.4$ and a standard deviation of $8.5$ . What is the probability that a randomly selected student scored higher than $86$ ? Is this considered an unusual event?

Accepted Answer

$0.0548$

This is not considered an unusual event

Answer

$0.0548$

This is considered an unusual event

Answer

$0.0548$

This is not considered an unusual event

Answer

$0.0548$

This is considered an unusual event

Suppose exam scores in a statistics course are normally distributed with a mean of 72.472.4 and a standard deviation of 8.58.5. What is the probability that a randomly selected student scored higher than 8686? Is this considered an unusual event?

Suppose exam scores in a statistics course are normally distributed with a mean of $72.4$ and a standard deviation of $8.5$ . What is the probability that a randomly selected student scored higher than $86$ ? Is this considered an unusual event?