What is the primary function of statistics?

The primary function of statistics is to evaluate and interpret data, making option C the most accurate choice. This encompasses a range of activities including analyzing data sets to understand patterns, significance, and relationships. Evaluating data allows researchers and decision-makers to draw conclusions based on empirical evidence, which is crucial in various fields such as engineering, social sciences, and business. This interpretation can inform decisions, guide research directions, and help communicate findings effectively.

In addition to evaluation and interpretation, statistics also involves organizing and presenting data, as well as making predictions based on data trends. However, these are secondary functions that support the overarching goal of understanding and analyzing data. Probability calculations also play a role, particularly in inferential statistics which relies on sample data to make predictions about a larger population. Thus, while those options are relevant to the field of statistics, they serve specific purposes within the broader context of evaluating and interpreting data effectively.