Histograms Bins are the bars Counts are the heights Relative Frequency Histograms have percents on vertical axis
Stem-Leaf Plot Contain same information as a histogram but also preserve individual data valves.
Dot Plots Places a dot along an axis for each case in the data. Great for small data sets.
Time Plots Dots arranged in data order. Lines connect the dots.
Describing Histograms Center (mean or median) Unusual features (outliers and/or gaps) Shape (Normal? Skewed? Modes?) Spread (range, IQR or SD)
Approximately Normal Distribution
Histogram: Skewed to the right
Skewed to the Left
Skewed to the ?
Bimodal
Outlier with a gap
Outliers