Answer:
a. each category on the vertical axis and the appropriate range of values on the horizontal axis.
Explanation:
Statistical diagrams are images with special characteristics that is used to interpret categories of values at a given range. The data are inputted to the diagram with marks showing their position or relationship.
There are several types of statistical diagrams and they are pie chart, bar chart, pictogram, histogram etc.
The bar chart can be vertical or horizontal. In the vertical bar chart, the bars, representing the data are aligned vertically and the range is marked on the horizontal plain, while in the horizontal bar chart, the bars are aligned horizontally.