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Big Ideas Data Analysis

Big Ideas Data Analysis. 1. A collection of objects with various attributes can be classified or sorted in different ways. A single object can belong to more than one class. Classification is the first step in the organization of data. Big Ideas Data Analysis. 2.

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Big Ideas Data Analysis

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  1. Big Ideas Data Analysis • 1. • A collection of objects with various attributes can be classified or sorted in different ways. • A single object can belong to more than one class. Classification is the first step in the organization of data.

  2. Big Ideas Data Analysis • 2. • Data are gathered and organized in order to answer questions about populations from which the data come. • With data from only a sample of the population, inferences are made about the population.

  3. Big Ideas Data Analysis • 3. • Different types of graphs and other data organizations provide different information about the data and the population from which the data are taken. • The choice of graphical representation can impact how well the data are understood.

  4. Big Ideas Data Analysis • 4. • Measures that describe data with numbers are called statistics. • Data can be organized in various graphical forms to visually convey information. • The use of a particular graph or statistic can mediate what the data tell about the population.

  5. Big Ideas Data Analysis • 5. • Both graphs and statistics can provide a sense of the shape of the data, including how spread out or how centered they are. • Having a sense of the shape of the data is having a big picture of the data rather than a collection of numbers.

  6. Reference • Elementary and Middle School Mathematics, • Teaching Developmentally, Chapter 22, p. 452, Van De Walle.

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