Chartered Property Casualty Underwriter (CPCU) 500 Practice Exam

Central tendency is about identifying a typical or center value of a data set. The most commonly cited pair of measures for this purpose are the mean and the median. The mean combines all data points to locate a balance point, which is especially informative for symmetric distributions and supports further calculations like variance and standard deviation. The median, as the middle value, remains robust to outliers and is suitable for skewed distributions or ordinal data. Together, they cover central position concepts in different data situations, which is why they are considered fundamental. The other options mix measures of spread—like range, variance, standard deviation, and interquartile range—with a frequency-based measure (mode)—which describe dispersion or modality rather than central position.