10 - Standard Deviation as a ruler

How can we compare scores with different units?

Practice

Chapter 6 # 7,8,9,12, Read pages 104-107

Vocabulary

Z-score, standardized value

Study Questions

1. What does it mean to standardize a value?
2. How do z-scores help us compare values from different data sets and possibly with different units?
3. How do z-scores highlight outliers?

Resources

1. Slide Deck: 10-Standard-deviation-as-a-ruler.pdf