For a bell-shaped distribution,score x would be considered an outlier if:
A)x = 15,mean = 20,standard deviation = 3
B)x = 15,mean = 50,standard deviation = 30
C)x = 15,mean = 25,standard deviation = 5
D)x = 15,mean = 10,standard deviation = 100
E)x = 15,mean = 50,standard deviation = 10

Question

Quizplus · Accepted Answer

In a bell-shaped distribution, a score is typically considered an outlier if it is more than 3 standard deviations away from the mean. For choice E, $|15 - 50| = 35$, which is 3.5 standard deviations away from the mean (since $35/10 = 3.5$), making it an outlier.

For a Bell-Shaped Distribution,score X Would Be Considered an Outlier