Valid ways to display mark labels in a visualization include:
a) Inside the bars of a bar chart: This method places labels within the bars, indicating specific values.
How to display the mark labels
b) Next to data points on a scatter plot: Labels appear adjacent to each data point, indicating its value or identification.
c) Along the x-axis of a line graph: Labels are shown horizontally along the x-axis, denoting categories or time intervals.
e) In the title of the visualization: Mark labels can be incorporated within the title, providing an overall description or identification for the visualization's content.
These methods effectively communicate data values or contextual information within different types of visualizations.