The document outlines key concepts for graphing and representing data including measuring center and spread through mean, median, mode and range. It discusses frequency and distribution by examining clusters, gaps and dispersion. Additional topics covered are reading and interpreting charts, using data and statistics to form hypotheses and predictions and testing hypotheses. Methods for preparing tables, graphs and plots such as bar graphs, circle graphs, frequency distributions, line graphs and scatterplots are listed. The document also mentions faulty arguments, errors and misleading presentations of data as well as outliers and choosing samples.

1. 2 column notes: Graphing and Data Representation:
 Center and Spread
o Mean, Median, Mode, and Range
 Frequency and Distribution
o Clusters and Gaps
o Dispersion
 Reading and Interpreting Charts
o Scatterplots
 Using Data and Statistics
o Making Hypotheses
o Making Predictions
o Testing Hypotheses
 Preparing tables, graphs, and plots
o Bar and circle graphs
o Frequency distribution and line graphs
o Line graphs and scatterplots
 Faulty arguments, errors, misleading presentation
 Representation of Data
o Tables and charts

2. o Symbols
o Line graphs
 Outliers
o Erroneous data
o Correct but unusual data
o Handling outliers
 Choosing samples
o Random samples
o Bias in sampling
o Sampling errors