Data Analysis Students’ work on data begins with sorting activities in which they sort objects by their attributes, describing what distinguishes one group from another. This early work in classification provides experience in considering only certain attributes of an object while ignoring others. Students then apply these ideas to categorical data. They classify data with many different values, for example the responses to the question, “What is your favorite weekend activity?” by grouping the data into categories (outdoor and indoor activities; or things you do by yourself, things you do with one friend, and things you do with a group). By grouping the data in different ways, students can use the same data to answer different questions.
Benchmarks • Use a Venn diagram to sort data by two attributes • Identify categories for a set of categorical data and organize the data into the chosen categories • Order and represent a set of numerical data • Describe a numerical data set, including the highest and lowest values and the mode • Read and interpret a variety of representations of numerical and categorical data