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SOCS: Box Plots & Stem Plots

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Presentation on theme: "SOCS: Box Plots & Stem Plots"— Presentation transcript:

1 SOCS: Box Plots & Stem Plots
Judith Loya Julissa Padilla Andrew Crosby John Rebol

2 box Plot: What is it used for?
Numerical / Quantitative measures only Best for skewed data

3 SOCS: SHAPE Shape: Best to represent skewed data. Represents the shape that the data set makes in the graph.

4 SOCS: Outliers Outliers

5 SOCS: center Center: Use a Median measurement of center (outlier resistant)

6 SOCS: Spread Spread: IQR and Range

7 Stem Plot: What is it used for?
Numerical Data

8 Stem Plot: How are they made?
Divide each observation into a stem or leaf Leaf: Last digit in observation Stem: Contains all digit that precedes the leaf One Digit numbers have a 0 in the stem

9 SOCS: SHAPE Sideways looks like a Histogram

10 SOCS: Outliers

11 SOCS: CENTER Mean if symmetric
Median if not symmetric because it is resistant to outliers (graph to view symmetry)

12 SOCS: SPREAD Organized highest to lowest numbers


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