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Two students, Brad and Jin, had the test scores shown below. Use their data for 1-10. The first one is done for you. Brad: Jin: 70, 76, 78, 80, 90, 94, 94, 98 80, 82, 84, 84, 86, 86, 88, 90 2. Find Jin's mean test score. 1. Find Brad's mean test score. 85 3. Find Brad's median test score. 4. Find Jin's median test score. 5. Find Brad's range. 6. Find Jin's range. 7. Find Brad's first and third quartiles. 8. Find Jin's first and third quartiles. 9. Find Brad's interquartile range. 10. Find Jin's interquartile range. Use your statistics from 1-10 to solve. The first one is done for you. 11. In what ways are Brad's and Jin's test scores similar? Possible answer: Their means are equal and their medians are equal. 12. In what ways are Brad's and Jin's test scores different? 13. Which of the two students would you consider a more consistent test taker? Explain your thinking. 14. One of the students has test scores with a standard deviation of 3 and the other has test scores with a standard deviation of 9.6. Without calculating, how can you tell which student has each standard deviation?
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