Statistics - is the collection and classification of data that are in the form of numbers, Mean - the average, Distribution - the relative arrangement of the members of a statistical population, Probability - The chance that something happened, Sample - a group of individuals or events selected to represent the population , Risk - is the probability of an unwanted outcome, Models - representation of objects or systems, Conceptual Model - a verbal or graphical explanation for how a system works or is organized, Mathematical Model - is one or more equations that represents the way a system or process works, Scientific Method - a process that scientists use to better understand the world around them, Hypothesis - an educated guess, Independent Variable - a variable that stands alone and isn't changed by other variables you are trying to measure,

2.2 Stats and Models

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