A student was interested in the cigarette smoking habits of college students and collected data from an unbiased random sample of students. The data is summarized in the following table: 
What type of chart best represents the frequency table?
Definitions:
Independent Variable
A variable that is manipulated or changed in an experiment to investigate its effects on the dependent variable.
Dependent Variable
In an experiment, it's the component predicted to alter due to changes in the independent variable.
Marginal Means
The mean values that appear in the margins of a contingency table, reflecting the average across different levels of a variable.
Dependent Variable
A variable being tested and measured in an experiment, often considered as the outcome or effect that is influenced by another variable.
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