25. Lesson 4(DOT)5(COLON) Standardisation and z-scores
Key Themes In Lesson 4.5: Standardisation And Z-scores — Quiz
Test your understanding of key themes in lesson 4.5: standardisation and z-scores with 5 practice questions.
Practice Questions
Question 1
What is the formula to calculate the z-score of a raw score $X$?
Question 2
If the mean of a dataset is $50$ and the standard deviation is $5$, what is the z-score for a data point of $60$?
Question 3
Which of the following represents a z-score of $0$?
Question 4
In a normal distribution, what percentage of data points lie within one standard deviation of the mean?
Question 5
If the mean of a dataset is $100$ and a z-score of $1.5$ is calculated, what is the corresponding raw score if the standard deviation is $20$?