Chapter 4 Graphs and Plots Why Use Graphs
- Slides: 24
Chapter 4: Graphs and Plots
Why Use Graphs? • Provide more understandable picture of data. • Provide an “eyeball” test of the data. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 2
Graphing Continuous Data (1 of 11) Principles of Graph Construction • Depiction of frequency. • X-axis: abscissa. • Y-axis: ordinate. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 3
Graphing Continuous Data (2 of 11) Principles of Graph Construction Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 4
Graphing Continuous Data (3 of 11) Principles of Graph Construction • Indication of variables and frequency. • No single graph best for tabular data. • Conventions for constructing graphs: Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 5
Graphing Continuous Data (4 of 11) Principles of Graph Construction Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 6
Graphing Continuous Data (5 of 11) Principles of Graph Construction Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 7
Graphing Continuous Data (6 of 11) Histogram • Graph for continuous data. • Continuous data on X-axis. • Reading a histogram. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 8
Graphing Continuous Data (7 of 11) Histogram Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 9
Graphing Continuous Data (8 of 11) Frequency Curve or Line Graph • Connecting bars of at midpoints. • Interpreting the curve. • Constructing a curve without a histogram. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 10
Graphing Continuous Data (9 of 11) Frequency Curve or Line Graph Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 11
Graphing Continuous Data (10 of 11) Boxplot or Box-and-Whisker Plot • Graph for comparing several variables. • More of summary of distribution. • Uses a box and two whiskers. • Useful pieces of information. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 12
Graphing Continuous Data (11 of 11) Boxplot or Box-and-Whisker Plot Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 13
Symmetry, Skew, and Kurtosis (1 of 7) • • Normal curve. Middle score. Perfectly symmetric. Skewed distribution. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 14
Symmetry, Skew, and Kurtosis (2 of 7) Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 15
Symmetry, Skew, and Kurtosis (3 of 7) Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 16
Symmetry, Skew, and Kurtosis (4 of 7) • • Kurtosis distribution. Leptokurtic distribution. Platykurtic distribution. Bimodal and uniform distributions. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 17
Symmetry, Skew, and Kurtosis (5 of 7) Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 18
Symmetry, Skew, and Kurtosis (6 of 7) Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 19
Symmetry, Skew, and Kurtosis (7 of 7) Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 20
Graphing Discrete Data (1 of 4) Bar Graph • Graph appropriate for nominal data. • Constructing a bar graph. • Reading a bar graph. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 21
Graphing Discrete Data (2 of 4) Bar Graph Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 22
Graphing Discrete Data (3 of 4) Pie Graph • Circle: “slices” represent percentages. • Creating a pie graph. • Reading a pie graph. • Uses of pie graph. Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 23
Graphing Discrete Data (4 of 4) Pie Graph Steinberg, Statistics Alive!, Third Edition © SAGE Publications, 2021. 24
- Why why why why
- Good and bad state graphs in software testing
- Graphs that enlighten and graphs that deceive
- Disadvantages of box plots
- Dont ask
- Comparing distance/time graphs to speed/time graphs
- Polynomial function form
- Unit scatter plots and data quiz 1
- Quiz scatter plots and trend lines
- Box and whisker plot from cumulative frequency
- Stem and leaf calculator
- Comparing data displays worksheet
- Section 10 topic 5 residuals and residual plots
- Box and whisker plot
- Box and whisker plot worksheet
- 9-3 histograms and box plots
- Scatter plots and trend lines worksheet
- Multiple regression scatter plot
- 4-1 construct and interpret scatter plots
- 4-5 worksheet scatter plots and trend lines answer key
- The brook poem summary
- 2-5 scatter plots and lines of regression
- Box plot from cumulative frequency graph
- Frequency tables and line plots
- Scatter plots and data student handout 4