A two-way frequency table shows that out of 240 students, 96...

Question Analysis
This question tests the student's ability to calculate the joint relative frequency after a change in the total population. The key is to understand how the addition of new students affects the joint relative frequency.

Key Concept Explanation
Joint Relative Frequency: It is the ratio of the joint frequency (the number of students in a specific category) to the total number of the population. In this case, it is the proportion of 11th-grade students who play basketball among the total number of students.

Step-by-step Solution
1. Identify the initial joint frequency of 11th-grade students who play basketball: 96.
2. Determine the new total number of students: 240 + 30 = 270.
3. Calculate the new joint relative frequency:

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Algebra-1

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