Chapter 2 - Chapter Two Data Collection Chapter 2 1 Why do...

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Chapter 2 1 Chapter Two Data Collection
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Chapter 2 2 Why do we need to summarize data? Lists or tables of numbers are difficult for our brain to process Need to organize numbers so that we can make broad observations Observations based on data help us make better decisions about business and our personal lives
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Chapter 2 3 Individuals vs. Variables An individual is the thing we count, such as students, cars, countries or invoice statements A variable is some characteristic about the individual. Students - grade point average, year in school Cars - color, price Countries - population, type of climate Invoice statements - number of errors, customer name
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Chapter 2 4 Attribute vs. Numerical Variables Attribute data puts individuals into groups year in school color type of climate customer name Numerical data assigns numbers for use with appropriate arithmetic grade point average price population number of errors
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Chapter 2 5 Discrete or Continuous
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Chapter 2 - Chapter Two Data Collection Chapter 2 1 Why do...

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