Higher Concepts of Mathematics STATISTICSSTATISTICSThis chapter will cover the basic concepts of statistics.EO 1.1 STATE the definition of the following statistical terms:a. Meanb. Variancec. Mean varianceEO 1.2 CALCULATE the mathematical mean of a given set ofdata.EO 1.3 CALCULATE the mathematical mean variance of agiven set of data.EO 1.4 Given the data, CALCULATE the probability of anevent.In almost every aspect of an operator’s work, there is a necessity for making decisions resultingin some significant action. Many of these decisions are made through past experience with othersimilar situations. One might say the operator has developed a method of intuitive inference:unconsciously exercising some principles of probability in conjunction with statistical inferencefollowing from observation, and arriving at decisions which have a high chance of resulting inexpected outcomes. In other words, statistics is a method or technique which will enable us toapproach a problem of determining a course of action in a systematic manner in order to reachthe desired results.Mathematically, statistics is the collection of great masses of numerical information that issummarized and then analyzed for the purpose of making decisions; that is, the use of pastinformation is used to predict future actions. In this chapter, we will look at some of the basicconcepts and principles of statistics.FrequencyDistributionWhen groups of numbers are organized, or ordered by some method, and put into tabular orgraphic form, the result will show the "frequency distribution" of the data.Rev. 0 Page 1 MA-05

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