A random sample of 100 patients at a local hospital was selected and the length

Question

A random sample of 100 patients at a local hospital was selected and the length of stay (LOS) of each was recorded. A boxplot showing the distribution is shown here. Which of these statements is false? Boxplot of Los A. The upper inner fence is 11. B. The distribution of length of stay is right- C. Half of the patients had stays lasting about 4 days or less. D. The 75 percentile is 6 days. E. The mean length of stay is higher than 4 days. n a sunvgy. poople were sked about the social media tool they use most ofen. The bar chart below displays the results. Other Social Media Tool Which of these is the most serious flaw in the way the bar chart is displayed? A. The y-axis scale should start at 0. B. The bars should be displayed horizontally instead of vertically. C. There should be no space between the bars. D. The bars should be arranged in increasing order of height. E. The bar chart should be drawn in three dimensions instead of two.

Explanation / Answer

(20) Option B, since from the boxplot, we see that the distribution is symmetric.
(21) Option A, since it is a convention that the y-axis scale starts from 0, otherwise it will be difficult for us to interpret.

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