How can you compare distributions across months or locations in the LDS?

• A. Use grouped statistics by month or location and compare the groups.
• B. Use a single overall average ignoring groups.
• C. Compare only the maximum values.
• D. Sort the data only.

Answer: (A)

When you want to compare how data behave in different categories, group the data by that category (month or location) and look at the same statistics for each group. This lets you compare distributions directly across months or locations. For example, compute the median, quartiles, and range for each month, or use box plots to show center and spread side by side. Grouped statistics preserve the structure of the data and reveal differences in typical values and variability that a single overall summary would miss.

Using a single overall average ignores how groups differ; it smooths over variations between months or locations. Looking only at the maximum value gives only the extreme and misses what’s typical or how values spread. Sorting the data alone rearranges order but doesn’t provide a comparison of distributions across categories.