When polling teachers about a workshop day, what statistical measure should the math supervisor use?

In the context of polling teachers about a workshop day, the mode is considered the most appropriate statistical measure because it identifies the value that appears most frequently in the data set. When assessing preferences, opinions, or attendance regarding workshops, the mode highlights the most common response among teachers, which can be particularly useful in understanding the overall consensus or trend in their feedback.

Using the mode allows the math supervisor to quickly grasp which workshop day is preferred by the majority of teachers. This is especially beneficial when the data is categorical or when there are certain options that a large number of respondents lean towards. Other statistical measures, like mean and median, might not be as effective in conveying the most prevalent choice among the responses. The range merely provides information about the spread of responses but does not convey which option is favored. In summary, utilizing the mode provides clear insight into the collective preference of the teachers regarding the workshop day.