Chapter Outline
In this chapter, you’ll learn how to summarize and interpret data, which is essential for making sense of the information around us. You’ll explore different ways to collect, organize, and display data using tables, charts, and graphs. You’ll learn to calculate measures of central tendency, such as mean, median, and mode, which help you understand the typical value in a data set. Additionally, you’ll discover how to measure variability using range, variance, and standard deviation, giving you insight into how spread out the data points are. By mastering these skills, you’ll be able to interpret data accurately, draw meaningful conclusions, and make informed decisions based on the data you encounter in everyday life.
6.1
Describing Data
Learning Objectives
By the end of this section, you will be able to:
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Explore data collection and data displays
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Differentiate between a population and a sample
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Classify a sample as random or biased
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Interpret a data display in terms of the shape of the data distribution
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Identify the different ways to collect data
6.2
Measures of Center
Learning Objectives
By the end of this section, you will be able to:
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Calculate the mean and median, and determine the effect of outliers on the measures of center
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Represent data on a dot plot and explore the shape of the distribution
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Represent data on a histogram and explore the shape of the distribution