4. Statistics and Probability

Standardization And Z-scores — Quiz

Test your understanding of standardization and z-scores with 5 practice questions.

Practice Questions

Question 1

What is standardization in statistics?

Question 2

If a value has a z-score of $0$, what does that tell you?

Question 3

Which formula is used to find a z-score for a data value $x$ in a population with mean $\mu$ and standard deviation $\sigma$?

Question 4

A test score of $80$ comes from a group with mean $70$ and standard deviation $5$. What is the z-score?

Question 5

A data value has a z-score of $-1.5$. What does this mean?