Measures of Spread
Published: Jul 23rd, 2013
View Lecture Slides with Transcript – Measures of Spread Video (6:25) Video – Recorded Live (1:26) This short video contains an overview of the range and IQR. The original slides […]
Content Tagged “Variation” 
Describing Distributions
Published: Jul 23rd, 2013
View Lecture Slides with Transcript – Describing Distributions Video (3:58) Video – Recorded Live (3:40) This short video contains some additional discussion about shapes of distribution including symmetry and modality. […]
Describing Distributions
Published: Jun 28th, 2013
Features of Distributions of Quantitative Variables Shape (Symmetry/Skewness, Modality) Center Spread Outliers Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods based on these distinctions, […]
Learn By Doing – Standard Deviation
Published: Dec 21st, 2012
The concept of standard deviation is less intuitive as a measure of spread than the range or the IQR. The following activity is designed to help you develop a better […]
Measures of Spread
Published: Aug 21st, 2012
Introduction Range Inter-Quartile Range (IQR) Standard Deviation Properties of the Standard Deviation Choosing Numerical Measures Let’s Summarize CO-4: Distinguish among different measurement scales, choose the appropriate descriptive and inferential statistical methods […]