Glenda Lappan, James T. Fey, William M. Fitzgerald, "Data Distributions: Describing Variability & Comparing Groups" 2006 | pages: 222 | ISBN: 0131656767 | PDF | 4,7 mb
Apply the process of statistical investigation to pose questions, to identify ways data are collected, and to determine strategies for analyzing data in order to answer the questions posed
Recognize that variability occurs whenever data are collected
Describe the variability in the distribution of a given data set
Identify sources of variability, including natural variability and variability that results fromerrors in measurement
Determine whether to use the mean or medianto describe a distribution
Use the shape of a distribution to estimate thelocation of the mean and the median
Use a variety of representations, including tables,bar graphs, and line Descriptions, to display distributions
Understand and use counts or percents toreport frequencies of occurrence of data
Compare the distributions of data sets usingtheir centers (mean, median, and mode),variability (outliers and range), and shape(clusters and gaps)
Decide if a difference among data values orsummary measures matters
Develop and use strategies to compare data setsto solve problems
Title: Data Distributions Describing Variability Comparing Groups
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