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An instructor is evaluating the performance of students on a test. He records the number of points that each student missed and created a frequency
An instructor is evaluating the performance of students on a test. He records the number of points that each student missed and created a frequency distribution. This is provided below: Points missed Number of students 0-under 10 Io-under 20 -I 20-under 30 30-under 40 40-under 50 __ 5 The mean number of points missed 7 , The third quartile (Q3) of the sample is is about about A. 20 A. 20 B. 25 B. 38.125 C. 29 C. 35 D. 30 D. 29.875 E. None of the above E. None of the above 6 The median number of points missed is about A. 20 B. 25 C. 29 D. 30 E. None of the above
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