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19. Which of these measures is unaffected by outliers? A. Range B. Variance C. Mean D. Median 20. Which of the following would indicate that a dataset is not bell-shaped? A. The mean is much smaller than the median. B. The range is larger than the interquartile range. C. The range is equal to 5 standard deviations. D. There are no outliers. 21. The boxplots below presents a summary of the Math and Verbal scores among students of SAMCIS University. Which of the following statements are true? I. The range of the math scores equals the range of the verbal scores. II. The highest math score equals the median of the verbal score. III. The verbal scores appear to be roughly symmetric, while the math scores appear to be skewed to the right.