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How To Make a Table of a Grouped Frequency Distribution

Prepare a table of a grouped frequency distribution of test scores with columns for class interval, frequency, cumulative frequency, percentage, cumulative percentage/percentile rank, z-score, and T-score. Explain this table in your own words so that a lay person could understand it.

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This solution provides a detailed step-by-step explanation of how to make a table of a grouped frequency distribution from raw data. It explains how to find and compute the values to include under columns for class interval, frequency, cumulative frequency, percentage, cumulative percentage/percentile rank, z-score, and T-score. The instructions are provided in the context of an example that walks you through the steps for creating a table of a grouped frequency distribution from a data set of 10 test scores (ranging from a possible 0 to 20) using a class interval of 2. It concludes with a recommendation for how to provide an explanation of how to interpret the table in a way that a layperson could easily understand. Internet links are provided.

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