Summarize two-category data with two-way tables and interpret joint, marginal, and conditional relative frequencies.
Compute a joint relative frequency
Problem
A two-way table cell has count \(8\) out of a grand total of \(40\). Find the joint relative frequency.
Big Picture
What this problem is really about
A joint relative frequency asks what share of the entire table lies in one specific row-and-column intersection. Put that interior cell count in the numerator and the grand total in the denominator, then convert the resulting part-of-all ratio into the requested form.
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