Which of the following is FALSE? (a)Box plots are useful for highlighting outlie

Question

Which of the following is FALSE?

(a)Box plots are useful for highlighting outliers, but we cannot determine skew based on a box plot.

(b) Median and IQR are more robust statistics than mean and SD, respectively, since they are not affected by outliers or extreme skewness.

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(c) When the response variable is extremely right skewed, it may be useful to apply a log transformation to obtain a more symmetric distribution, and model the logged data.

(d) Segmented frequency bar plots are “good enough” for evaluating the relationship between two categorical variables if the sample sizes are the same for various levels of the explanatory variable.

Explanation / Answer

b) is False

b) Median and IQR are more robust statistics than mean and SD, respectively, since they are not affected by outliers or extreme skewness.

two proportions many proportions

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