Which plot is used to display control results on the Y-axis against time on the X-axis?

Which plot is used to display control results on the Y-axis against time on the X-axis?

• A. Plot of control results on Y-axis
• B. Plot of control results on X-axis
• C. Histogram of results
• D. Plot of patient ages vs results

Answer: (A)

This is a time-series plot. When you monitor control results over time, the measured control value goes on the vertical (Y) axis and time progresses along the horizontal (X) axis. This arrangement lets you see trends, drifts, or sudden shifts in control status across the monitoring period. The other options don’t show the time progression with the control data: placing control results on the X-axis reverses the axes, a histogram ignores time, and plotting ages versus results mixes in an unrelated variable.

This is a time-series plot. When you monitor control results over time, the measured control value goes on the vertical (Y) axis and time progresses along the horizontal (X) axis. This arrangement lets you see trends, drifts, or sudden shifts in control status across the monitoring period. The other options don’t show the time progression with the control data: placing control results on the X-axis reverses the axes, a histogram ignores time, and plotting ages versus results mixes in an unrelated variable.