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Histograms Bins are the bars Counts are the heights Relative Frequency Histograms have percents on vertical axis

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Stem-Leaf Plot Contain same information as a histogram but also preserve individual data valves.

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Dot Plots Places a dot along an axis for each case in the data. Great for small data sets.

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Time Plots Dots arranged in data order. Lines connect the dots.

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Describing Histograms Center (mean or median) Unusual features (outliers and/or gaps) Shape (Normal? Skewed? Modes?) Spread (range, IQR or SD)

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Approximately Normal Distribution

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Histogram: Skewed to the right

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Skewed to the Left

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Skewed to the ?

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Bimodal

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Outlier with a gap

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Outliers

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Chapter 4: Displaying Quantitative Data

Chapter 4: Displaying Quantitative Data

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