The correct answer is (C). Both histograms are mirror images around their center, so both are symmetric. The range is equal to the biggest value minus smallest value. Therefore, in the first histogram, the range is equal to 11 minus 7 or 4. And in the second histogram, the range is equal to 23 minus 19 or 4. Hence, both data sets have the same range.
AP Statistics Tutorial
Exploring Data
▸ The basics
▾ Charts and graphs
Patterns in data
Dotplots
Histograms
Stemplots
Boxplots
Cumulative plots
Scatterplots
Comparing data sets
▸ Regression
▸ Categorical data
Planning a Study
▸ Surveys
▸ Experiments
Anticipating Patterns
▸ Probability
▸ Random variables
▸ Discrete variables
▸ Continuous variables
▸ Sampling distributions
Statistical Inference
▸ Estimation
▸ Estimation problems
▸ Hypothesis testing
▸ Hypothesis tests
Appendices
◾ Practice Exam
◾ Notation
◾ AP Statistics Formulas
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