Developing essential understanding of statistics for teaching mathematics in grades 9-12 [electronic resource] / Patricia S. Wilson, volume editor, University of Georgia, Athens, Georgia ; Rose Mary Zbiek, series editor, The Pennsylvania State University, University Park, Pennsylvania ; Roxy Peck, California Polytechnic State University, San Louis Obispo, California ; Robert Gould, University of California-Los Angeles, Los Angeles, California ; Stephen J. Miller, Winchester Thurston School, Pittsburgh, Pennsylvania