NO.PZ2021061603000018
问题如下：
A heat map is best suited for visualizing the:
选项：
A. frequency of textual data.
B. degree of correlation between different variables.
C. shape, center, and spread of the distribution of numerical data.
解释：
B is correct. A heat map is commonly used for visualizing the degree of correlation between different variables. A is incorrect because a word cloud, or tag cloud, not a heat map, is a visual device for representing textual data with the size of each distinct word being proportional to the frequency with which it appears in the given text. C is incorrect because a histogram, not a heat map, depicts the shape, center, and spread of the distribution of numerical data.
如题。。。。。。。。。
