Which is a correct approach to showing a trend from the LDS?

Which is a correct approach to showing a trend from the LDS?

• A. Use a pie chart to illustrate yearly values
• B. A scatter plot of unrelated variables
• C. Use a line chart to show changes over multiple years
• D. A histogram of single-year values

Answer: (C)

To show a trend over time, you want a chart that clearly depicts how a value changes across years. A line chart does this by plotting yearly values on a time axis and connecting the points with a line. The result makes the direction of change easy to see—whether the measure rises, falls, or fluctuates—and it also shows the rate of change from year to year. If you’re looking at data from the LDS over several years, this kind of chart best reveals patterns and trends. The other options don’t fit as well. A pie chart represents parts of a whole at a single point in time, not changes over time. A scatter plot shows relationships between two variables and is not focused on time sequencing. A histogram displays the distribution of values for one variable in a given dataset, again without the time context needed to identify a trend.

To show a trend over time, you want a chart that clearly depicts how a value changes across years. A line chart does this by plotting yearly values on a time axis and connecting the points with a line. The result makes the direction of change easy to see—whether the measure rises, falls, or fluctuates—and it also shows the rate of change from year to year. If you’re looking at data from the LDS over several years, this kind of chart best reveals patterns and trends.

The other options don’t fit as well. A pie chart represents parts of a whole at a single point in time, not changes over time. A scatter plot shows relationships between two variables and is not focused on time sequencing. A histogram displays the distribution of values for one variable in a given dataset, again without the time context needed to identify a trend.