As a general rule, an observation is considered an extreme value if its Z score is greater than 3.

Name: As a general rule, an observation is considered an extreme value if its Z score is greater than 3.
Brand: Quizplus
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Quizplus · Accepted Answer

This statement is true. An observation is considered an extreme value if its Z score is greater than 3 standard deviations. This corresponds to a probability of less than 0.003 or 0.3%.

As a General Rule, an Observation Is Considered an Extreme