Algebra-1

Question Analysis
This question involves a two-way frequency table with variables "grade level" (8th/9th) and "sport preference" (soccer/basketball), with a total of 100 students.
The main focus is on calculating the joint relative frequency of 8th graders who prefer soccer, relative to the entire student population.

Key Concept Explanation
Joint Relative Frequency: The proportion of the total number of observations that fall into the intersection of two categories. It is calculated as:
Joint Relative Frequency = (Joint frequency of the two categories) ÷ (Total number of observations in the dataset).

Step-by-Step Solution
Identify the joint frequency of 8th graders who prefer soccer: 30 (from the table).
Id...