Histograms Hours slept Frequency 1 – – – – – 10.92

Titled Vertical Axis Shows Frequencies Be sure to clearly label axes with quantity measured and units (when appropriate) Starts at 0. Graphs that cut off some values can be misleading

Hours slept 1 – – – – – 10.9 Lower class limits used as class boundary 5.0 would be included in this bar

Relative Frequency Histogram

Bar Graph (alternate form of a histogram)

Frequency Polygon

Ogive (Cumulative Frequency Polygon)

Stem and Leaf Plot (variant of histogram that shows all data) Stem (ones)Leaves (tenths) Data: 1.2, 2.9, 3.1, 3.5, 4.1, 4.6, 4.8, 5.0, 5.3, 5.3, 5.4, 5.7, 6.3, 6.7, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.2, 7.4, 7.5, 7.5, 7.8, 8.1, 8.2, 8.2, 8.5, 8.6, 9.3, 10.1

Pie Charts

Pareto Chart For Qualitative data Can also be used for Nominal level data For Ordinal level data, you would want your horizontal axis in “order” Data groups are arranged in order of decreasing size

Scatterplot Pairs each value from data set to a value from a second data set to create points.

Homework 2-3: 1, 3, 5, 7