1. Show and describe variability Mini-lesson 2 1 Data Literacy Project

2. Range? Shape of distribution? Where is the center of the data? day of the year Lowest value Highest value On what day does the ice go out on Swan Lake?

3. What is the range of each set of data? A.On what day of the year does the ice usually go out on Swan Lake? B. How old are the bears killed in Maine’s bear hunt? C. How fuel-efficient are the cars driven by Hutchinson Center students? D. How many minutes are there between Old Faithful eruptions?

4. Describe the shape of each distribution A.On what day of the year does the ice usually go out on Swan Lake? B. How old are the bears killed in Maine’s bear hunt? C. How fuel-efficient are the cars driven by Hutchinson Center students? D. How many minutes are there between Old Faithful eruptions? Normal Skewed Evenly Scattered Bi-modal

5. Which measure best describes the “center” of each data set? (mean? median? mode?) A.On what day of the year does the ice usually go out on Swan Lake? B. How old are the bears killed in Maine’s bear hunt? C. How fuel-efficient are the cars driven by Hutchinson Center students? D. How many minutes are there between Old Faithful eruptions?

6. How much electricity do US households use each month? State 2009 Avg. Monthly Consumption (kWh) Connecticut724 Maine521 Massachusetts610 New Hampshire623 Rhode Island566 Vermont576 New Jersey676 New York581 Pennsylvania842 Illinois728 Indiana992 Michigan644 Ohio878 Wisconsin689 Range = Shape of the distribution= Center = Frequency plots help you see the variability in a data set