Which of the following is NOT a method of data analysis?

The correct option is Subjective method.

Step-by-step Explanation:

Data analysis relies on systematic, structured, and reproducible approaches to inspect, cleanse, transform, and model data. The standard, recognized methodologies of research and data analysis include:

1. Qualitative method: This method focuses on analyzing non-numerical data (such as text, video, or audio) to understand concepts, opinions, or experiences. It is a well-established and formal scientific research method.

2. Quantitative method: This method involves the collection and analysis of numerical data to find patterns, make predictions, test causal relationships, and generalize results. It relies heavily on mathematical, statistical, and computational tools.

3. Mixed method: This approach integrates both qualitative and quantitative data within a single study. By combining numerical trends with in-depth contextual details, researchers achieve a more comprehensive understanding of the research problem.

4. Subjective method: Unlike the structured methods above, "subjective" refers to personal opinions, feelings, or interpretations that lack an objective, standardized analytical framework. While individual judgments can influence decisions, a "subjective method" is not classified as a formal, recognized scientific method of data analysis because it cannot be systematically replicated or verified.

Therefore, the Subjective method is NOT a recognized method of data analysis.