Comparing Variability of Data Sets: Forming Connections 2

Variability

Let’s use a data set of movie runtimes to explore variability using technology. Follow the directions below to display the descriptive statistics for the database: Movie Run Time, and use the results to answer Questions 2 – 4 below.

Go to the Describing and Exploring Quantitative Variables tool at https://dcmathpathways.shinyapps.io/EDA_quantitative/.

Step 1) Select the Several Groups tab.

Step 2) Locate the drop-down menu under Enter Data and select From Textbook.

Step 3) Locate the drop-down menu under Data Set and select Movie Run Time.

question 2

question 3

question 4

Now that you have more experience with the different measures of variability, you will investigate the effects on variability when there are extreme values, or outliers present.