In the MapProvision Viewer Visualization tool you can select Histogram from the Visualization drop down menu. Selecting this will show the dataset attributes that you select in the tree as histogram visualizations.

The histogram viewer shows a popup box each time the mouse is hovered over a bar in the graph to show the exact value for that attribute's spread.

The histogram will graph the selected attributes into ten different value ranges to show the spread of the data. The bars are color coded and have a legend to show which colors are being used to show each attribute's range.