PSY201H1 Lecture Notes - Lecture 5: Xz, Standard Deviation, Mathematical Notation
Document Summary
Do all exercises in the chapter and learning checks, and study guide questions. You should understand that a z-score provides a precise description of a location in a distribution. Students should be able to transform x values into z-scores, and transform z- scores into x values. Students should understand and be able to describe the effects of standardizing a distribution by transforming the entire set of x values into z- scores. Students should be able to use z-scores to transform any distribution into a standardization distribution with a predetermined mean and a predetermined standard deviation. Cannot compare different samples with different values. How do you transform any distribution into a standardized distribution so you can compare it to any distribution: finding how many standard deviations somewhere is away from the mean. Don"t change the mean, just change the location of the 0.
