Algebra-1

Question Analysis
This question evaluates the student's ability to calculate the proportion of a specific subcategory (10th graders playing tennis) within a larger category (all 10th graders). The student must use the joint frequency and the total number of 10th graders to find the proportion.

Key Concept Explanation
Proportions are used to express the relationship between a part and the whole. In this context, the proportion of 10th graders playing tennis is the number of 10th graders playing tennis divided by the total number of 10th graders, expressed as a percentage.

Step-by-step Solution
1. Identify the joint frequency of 10th grader...