What is an unusual z score?
Understand the Problem
The question is asking for an explanation or definition of an unusual z score, which relates to statistics and probability distributions. An unusual z score typically refers to a value that deviates significantly from the mean of a dataset, indicating that it is an extreme value in the context of a normal distribution.
Answer
Less than -2 or greater than 2
An unusual z-score is typically less than -2 or greater than 2.
Answer for screen readers
An unusual z-score is typically less than -2 or greater than 2.
More Information
Z-scores measure how many standard deviations a data point is from the mean. Most values lie within the range of -2 to +2, making values outside this range unusual.
Sources
- JoVe - Z Scores and Unusual Values - jove.com
- Quora - What is a Z score? When is it unusual? - quora.com
- Homework.Study.com - What is considered a very unusual z-score? - homework.study.com
Thank you for voting!
