an item of factual information derived from measurement or research

a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters

a statistic describing the location of a distribution

a statistic characterizing human populations (or segments of human populations broken down by age or sex or income etc.)

the difference between an observed value and the expected value of a variable or function

the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value

a statistic computed without knowledge of the form or the parameters of the distribution from which observations are drawn

a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters