To analyze the data using relative frequencies, we need to calculate the proportion of preferences for each music genre within each grade.
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For 10th graders:
- Total 10th graders = 165
- Preferring Hip-Hop = 112
- Preferring Pop = 53
Relative frequency for 10th graders preferring Hip-Hop: \[ \text{Relative frequency (10th Hip-Hop)} = \frac{112}{165} \approx 0.6788 \text{ (or 67.88%)} \] Relative frequency for 10th graders preferring Pop: \[ \text{Relative frequency (10th Pop)} = \frac{53}{165} \approx 0.3212 \text{ (or 32.12%)} \]
Conclusion for 10th graders: More likely to prefer Hip-Hop.
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For 11th graders:
- Total 11th graders = 245
- Preferring Hip-Hop = 98
- Preferring Pop = 147
Relative frequency for 11th graders preferring Hip-Hop: \[ \text{Relative frequency (11th Hip-Hop)} = \frac{98}{245} \approx 0.4 \text{ (or 40%)} \] Relative frequency for 11th graders preferring Pop: \[ \text{Relative frequency (11th Pop)} = \frac{147}{245} \approx 0.6 \text{ (or 60%)} \]
Conclusion for 11th graders: More likely to prefer Pop.
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To compare hip-hop preference across grades (total hip-hop preference):
- Total preferring Hip-Hop = 210
- 10th graders preferring Hip-Hop = 112
- 11th graders preferring Hip-Hop = 98
Relative frequency of hip-hop preference: \[ \text{Relative frequency (Hip-Hop from 10th)} = \frac{112}{210} \approx 0.5333 \text{ (or 53.33%)} \] \[ \text{Relative frequency (Hip-Hop from 11th)} = \frac{98}{210} \approx 0.4667 \text{ (or 46.67%)} \]
Conclusion for hip-hop: If you like hip-hop, you are more likely (53.33%) to be from 10th grade.
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To compare pop preference across grades (total pop preference):
- Total preferring Pop = 200
- 10th graders preferring Pop = 53
- 11th graders preferring Pop = 147
Relative frequency of pop preference: \[ \text{Relative frequency (Pop from 10th)} = \frac{53}{200} \approx 0.265 \text{ (or 26.5%)} \] \[ \text{Relative frequency (Pop from 11th)} = \frac{147}{200} \approx 0.735 \text{ (or 73.5%)} \]
Conclusion for pop: If you like pop, you are more likely to be from 11th grade.
Summary of Findings:
- 10th graders prefer Hip-Hop.
- 11th graders prefer Pop.
- If you like Hip-Hop, you are more likely to be from 10th grade.
- If you like Pop, you are more likely to be from 11th grade.
Final Answer:
If you are an 11th grader, you are more likely to prefer hip-hop. (This statement is false based on frequency results, while the observation about 10th graders being associated with Hip-Hop is true.)
Among the provided options, the correct conclusion from relative frequencies is: If you like hip-hop, you are almost equally likely to be from 10th or 11th grade. (This, however, should consider revised total preferences; 10th is comparatively high.)