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In grades 68, students learn to formulate questions, design studies, and collect data about a characteristic shared by two groups or different characteristics within one group. They learn to use graphical representations such as histograms, box plots, and scatterplots to represent data, and come to understand which representations most accurately present the data. They find, use, and interpret measures of center and spread, including mean and interquartile range, and they make, test, and use conjectures to formulate new questions and plan new studies to answer their questions. Middle School Problems of the Week that approach questions from a statistical point of view are listed below. They address the NCTM Data Analysis and Probability Standard for Grades 68. For background information elsewhere on our site, explore Middle School Probability and Statistics in the Ask Dr. Math archives. For relevant sites on the Web, browse and search Statistics in our Internet Mathematics Library; to find middleschool sites, go to the bottom of the page, set the searcher for middle school (68), and press the Search button. Access to these problems requires a Membership. 
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