Algebra-1

Question Analysis
This question involves a two-way frequency table with two variables: grade level (7th and 8th) and reading preference (fiction and non-fiction).
The main focus is on identifying the joint frequency for a specific combination of categories (7th grade and fiction).

Key Concept Explanation
Joint Frequency: The value in the cell where two categories intersect in a two-way table, representing the count of observations that belong to both categories.

Step-by-Step Solution
Locate the row for "7th Grade" and the column for "Fiction" in the table.
The value at their intersection is the joint frequency ...