Final answer:
Bar charts generally have spaces between the bars, which help to distinguish among different categories or groups. However, it depends on the data; for continuous data like that in histograms, there may be no space between the bars.
Step-by-step explanation:
The question you've asked pertains to whether bar charts should have spaces between the bars. The answer is C) It depends on the data. Bar charts typically have spaces between the bars because each bar represents an individual category or group which are distinct from each other. These spaces help to visually separate and distinguish among these categories. However, in certain types of bar charts, like histograms which represent continuous data, the bars are adjacent with no space in between to represent the continuous nature of the data.
When creating a bar chart, it is important to make the bars proportional to the values they represent and ensure that the spaces between the bars are consistent. For example, Figure A7 and Figure A8 show how bars can represent countries or years, and the vertical axis can represent a numerical or a percentage value. The bars in the examples compare different quantitative categories such as size, quantity, rates, or distances effectively because of the spaces between them.