MathematicsMediumHigh School (11–12)Statistics and Probability › StatisticsAPA-LevelIBAEEE (Amrita)AMUEEEAP EAPCET
Created by StemPy LabThe numbers of pages read by a student on seven days were and . The librarian uses the rule that leaves out the median when the number of values is odd. What is the interquartile range?
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← A group of 10 students has a standard deviation of 4 marks and a group of 30 students has a standard deviation of 8 marks. A student says that the standard deviation of all 40 is (10 × 4 + 30 × 8)/40 = 7 marks. What is wrong with this?A data set has a lower quartile of 18 and an upper quartile of 30. A reading above the upper fence, which is 1.5 interquartile ranges above the upper quartile, is marked as an outlier. What is the smallest whole number that would be marked as an outlier? →
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