Apply statistics to your everyday life. Statistics and Data Analysis for Social Science helps students to build a strong foundational understanding of statistics by providing clarity around when and why statistics useful. Rather than focusing on the “how to” of statistics, author Eric J. Krieg simplifies the complexity of statistical calculations by introducing only what is necessary to understanding each concept. Every chapter is written around and applied to a different social problem or issues–enabling students to broaden their imagination about the statistical “tools” that can be used to make sense of our world and, maybe, to make the world a better place. In addition to updating all the tables and examples with new data, the Second Edition has replaced the section on SPSS with three new sets of exercises at the end of each chapter:  1. Chapter Exercises for students complete during their reading and bring questions to class,  2. In-Class Exercises that focus on the areas that students struggled with during their reading, and  3.  Homework Exercises that can be assigned if students need extra practice with the concepts.

Measures of Central Tendency

Measures of Central Tendency

Measures of Central Tendency

A man and a woman stand in front of a lit wall with large scatter plot graphs on top and line graphs below. The man points to the second scatted plot and the woman looks at it.

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Introduction

How much income does the typical American take home each year? Are SAT math scores higher since the implementation of the No Child Left Behind act? Is the typical level of education higher for males than for females? These kinds of questions are addressed using a group of statistics known as measures of central tendency. The most commonly known of these is the mean, or average. Others include the mode and the median. They tell us what is typical of a distribution of cases. In other words, they describe where most cases in a distribution are located.

In this chapter, we learn the three most commonly used measures of central tendency: the mode, the median, and ...

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