Which statement is most applicable to trend analysis?

Which statement is most applicable to trend analysis?

• A. A map of the system.
• B. It identifies the current process capability only.
• C. It uses time-series data to identify patterns such as increasing, decreasing, or cyclic trends.
• D. It shows relationships between variables.

Answer: (C)

Trend analysis focuses on how a process behaves over time by looking at data collected in sequence. By using time-series data, you can spot patterns such as an upward or downward movement or repeating cycles, which is exactly what trend analysis aims to uncover. The other statements describe different kinds of analysis: a map of the system is about process flow and interactions, not time-based patterns; identifying the current process capability is just a single-point snapshot rather than a pattern over time; and showing relationships between variables relates to how one factor varies with another, not how a metric changes across time.

Trend analysis focuses on how a process behaves over time by looking at data collected in sequence. By using time-series data, you can spot patterns such as an upward or downward movement or repeating cycles, which is exactly what trend analysis aims to uncover. The other statements describe different kinds of analysis: a map of the system is about process flow and interactions, not time-based patterns; identifying the current process capability is just a single-point snapshot rather than a pattern over time; and showing relationships between variables relates to how one factor varies with another, not how a metric changes across time.