Which representation is NOT a method for showing elevation data?

The representation of elevation data conveys how terrain varies in height. Raster, profile, and TIN formats are all effective methods for visualizing elevation.

Raster representation uses a grid of cells, where each cell contains a value representing elevation, allowing for continuous surface modeling. Profiles provide a cross-sectional view of elevation across a specific line, effectively illustrating terrain changes over distance. Triangulated irregular networks (TIN) create a vector-based representation of terrain using triangles, which are formed from a set of irregularly spaced points, accurately reflecting the variability of the land surface.

In contrast, a histogram is a graphical representation of the distribution of numerical data and is typically used to show frequency distributions, not to depict elevation data. Therefore, while elevation data can always be quantified and recorded, a histogram does not serve as a method to represent that elevation visually and is the correct answer in this context.