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Regression Relative Frequency Relative Frequency Table Repeated Measures Design Replication Representative Residual Residual Plot Response Bias Row Echelon Form Row Vector Sample Sample Design Sample Point Sample Space Sample Survey Sampling Sampling Distribution Sampling Error Sampling Fraction Sampling Method Sampling With Replacement Sampling Without Replacement Scalar Matrix Scalar Multiple Scatterplot Selection Bias Set Significance Level Simple Random Sampling Simple Regression Singular Matrix Skewness Slope Sphericity Standard Deviation Standard Error Standard Normal Distribution Standard Score Statistic Statistical Experiment Statistical Hypothesis Statistics Stemplot Strata Stratified Sampling Subset Subtraction Rule Sum Vector Sums of Squares Symmetric Matrix Symmetry Systematic Sampling T Distribution T Score T Statistic Test Statistic Transpose Treatment t-Test Two-Sample t-Test Two-stage Sampling Two-Tailed Test Two-Way Table Type I Error Type II Error Unbiased Estimate Undercoverage Uniform Distribution Unimodal Distribution Union Univariate Data Variable Variance Variance Inflation Factor Vector Inner Product Vector Outer Product Vectors Venn Diagram Voluntary Response Bias Voluntary Sample Y Intercept z-score

Bar Chart

A bar chart is made up of columns or rows plotted on a graph. Here is how to read a bar chart made up of columns.

• The columns are positioned over a label that represents a categorical variable .
• The height of the column indicates the size of the group defined by the column label.

And here is how to read bar chart made up of rows.

• The rows extend from labels that represent a categorical variable.
• The length of the row indicates the size of the group defined by the row label.

The bar chart below is in "column" format. It shows average per capita income for the four "New" states - New Jersey, New York, New Hampshire, and New Mexico.

See also:

AP Statistics Tutorial: Bar Charts and Histograms | AP Statistics Tutorial: Comparing Distributions