A two-way frequency table shows that out of 80 students, 32 students are in the 10th grade and play soccer. The joint relative frequency of 10th-grade students who play soccer is _________(express as a fraction in simplest form).
Answer & Analysis
Analysis
Question Analysis
This question tests the understanding of joint relative frequency, which is the ratio of a specific combination of two variables to the total number of the population.
Key Concept Explanation
Joint relative frequency is calculated by dividing the joint frequency (the number of students in a specific combination) by the total number of the population. It can be expressed as a fraction, decimal, or percentage.
Step-by-step Solution
1. Identify the number of 10th-grade students who play soccer: 32
2. Identify the total number of students: 80
3. Calculate the joint relative frequency:
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