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Published byGia Lowman Modified over 9 years ago

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T-3 Histograms

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Histogram Basics A histogram is a special type of bar graph that measures the frequency of data Horizontal axis: represents values in the data set; you must count by the same value to get to the next interval; this is the x-axis Vertical axis: measures the frequency of the data (or how often it occurs); When drawing a histogram by hand, the y-axis should start at zero.

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Histogram Basics We use histograms for larger sets of data A value on the edge of a bar is counted in the bar to the right When making a histogram, make sure you always… – Have a title – Label your x-axis and y-axis (the y-axis is always Frequency!)

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