is concerned with the accumulation of data, measures of central tendency, and dispersion.

The statement you provided is referring to the field of Statistics.

Step 1: Accumulation of Data This involves the collection of data through various methods such as surveys, experiments, observations, etc. The data collected can be either qualitative or quantitative.

Step 2: Measures of Central Tendency This is a statistical measure that identifies a single value as representative of an entire distribution. It aims to provide an accurate description of the entire data. It is used in descriptive statistics to identify the center point or typical value of a dataset. The most common measures of central tendency are the mean, median, and mode.

Step 3: Dispersion Dispersion is the extent to which a distribution is stretched or squeezed. Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile range. Dispersion is contrasted with location or central tendency, and together they are the most used properties of distributions.