Summarize two-category data with two-way tables and interpret joint, marginal, and conditional relative frequencies.
Complete a two-way frequency table from raw counts
Problem
Use these raw counts to complete the two-way frequency table: \(30~\text{students}\): \(8\) prefer cats and own pets, \(7\) prefer cats and do not own pets, \(10\) prefer dogs and own pets, \(5\) prefer dogs and do not own pets.
Every interior cell in a two-way table represents one row category and one column category happening together. Match both labels before entering a count, then add all interior cells as a final check that every observation was recorded exactly once.
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