Which of these is NOT a technique for organizing statistical data?

Numerical analysis is primarily a mathematical discipline concerned with developing algorithms for solving numerical problems and is not specifically a technique for organizing statistical data. In the context of organizing data, techniques such as graphical displays, frequency distributions, and descriptive statistics are widely employed.

Graphical displays, like bar charts and histograms, allow researchers to visualize data trends and patterns, which aids in understanding the underlying information. Frequency distributions summarize data into ranges or intervals, making it easier to observe how data points are spread across categories. Descriptive statistics provides key numerical summaries, such as measures of central tendency and variability, which encapsulate the main features of a dataset.

These techniques help in organizing and interpreting data effectively, whereas numerical analysis focuses more on the computation process rather than the organization of data itself.