If you’re not sure which description best fits a graph, you can use the following format: table, graph, or caption. Whenever possible, you should include a title, trend, or axes for the graphical data. A pie chart’s color keys and scale are not necessary for visually impaired readers. It’s better to give the value of the pie and leave the color key out. If you’re presenting a bar chart, you can write a short, simple caption or use a longer description.
Graphs with an overlaid mathematical function are called line graphs. They can represent small changes and are often more accurate than bar graphs. Line graphs can be used to compare changes in two groups. Despite its name, they don’t represent changes over time. They’re better suited for comparing things within one group or across two groups. In contrast, pie charts are more useful when comparing the same variables but are not suitable for comparing different groups over time.
When a single subject is being measured, a line graph can be a better option. The X-axis represents the subjects and the Y-axis represents the time in hours. Using a line graph, you can compare the changes in one group to another over time. The lines in the graph represent the same height at various times, and the curves fall through all of the points of data, indicating the change is gradual.
The X-axis indicates the subjects, while the Y-axis shows the number of hours. The Y-axis is time measured at intervals of two hours. The X-axis represents the corresponding numbers of subjects. A line graph is a line graph. A curve in this shape does not fall through all the data points. Therefore, a line graph represents a continuous trend.
A line graph shows the hours of sleep in a period of four days. Its Y-axis represents the time in hours in intervals of two hours. The subject’s age is shown on the X-axis, and the Y-axis represents the time in minutes. The subjects are not age-related, so they’re aged in a similar way. The Y-axis is the time in years.
A line graph shows the amount of sleep a subject had at various points over time. The X-axis represents the subjects, while the Y-axis represents the time in hours at intervals of two hours. The trend is not continuous, but the slope of the best-fit line is not flat. Its slope is not linear, and the curve falls through all of the data points. The graph is a comparison between different groups.
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