Frequency Distribution:This refers to an overview of all distinct values or categories in a data set and how often they occur.
Central Tendency:This term refers to a central value or a typical value for a probability distribution. It may also be called center or location of the distribution. The three main measures of central tendency are mean, median, and mode.
Nominal Scale: A nominal scale is used for labeling variables without any quantitative value. It’s used simply to categorize, not to measure or order.