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Chapter 2: Q. 2.143 (page 81)

The Court's Burrow. The subterranean color (Spalacopus cyan) is a social rodent that lives in large colonies in underground burrows that can reach lengths of up to 600 meters. Zoologists S. Begall and M. Gallardo studied the characteristics of the burrow systems of the subterranean color in central Chile and published their findings in the Journal of Zoology, Landen (Vol. 251, pp. 53-60). A sample of 51 burrows, whose depths were measured in centimeters, yielded the following frequency histogram.

Short Answer

Expert verified

The distribution is skewed left.

Step by step solution

01

Given Information

To determine whether the graph is symmetric, right-skewed, or left-skewed.

02

Explanation

Consider the given graph:

If the shape of any distribution is divided into two parts, one of which is the mirror image of the other, the distribution is said to be symmetric.

The graph in question cannot be divided into two equal halves, one of which is a mirror image of the other. As a result, the graph's shape is asymmetric.

The larger tail of the distribution lines to the left, and the mean are smaller than the median, as seen in the given figure.

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Most popular questions from this chapter

Body Temperature. A study by researchers at the University of Maryland addressed the question of whether the mean body temperature of humans is 98.6~F. The results of the study by P. Mackowiak et al. appeared in the article " A Critical Appraisal of 98.6F, the Upper Limit of the Normal Body Temperature, and Other Legacies of Carl Reinhold August Wunderlich" (Journal of the American Medical Association, Vol. 268, pp. 1578-1580). Among other data, the researchers obtained the body temperatures of 93 healthy humans, as provided on the Weists state site.

a. use the technology of your choice to identify the modality and symmetry (or non-symmetry) of the distribution of the data set.

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Identify two main types of graphical displays that are used for qualitative data.
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