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Published byPolly Bradley Modified over 9 years ago
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Graphing Data
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Graphs All graphs must have title and labeled axis Labels let you know what information is shown.
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Line Graphs Show relationships between variables You should be able to see trend from graph Use data points to draw line of best fit Determine values of x & y Slope shows relationship/trend slope = change in y change in x
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Line Graphs Direct relationships = positive slope Indirect relationships = negative slope
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Line Graphs No relationship = horizontal line (zero slope)
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Line Graphs Always drawn to largest scale To determine scale: Find range of values and divide by # of lines on graph, round to nearest 0.5
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Line Graphs Example
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Bar Graphs Compare information collected by counting
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Circle Graph Show how a quantity is broken into parts How to find percentage? Part/whole x 100
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