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Variables A concept which varies is variable. These can be different in quantitative values. For example, weight, height, income are examples of variables. Qualitative phenom
Area under Standard Normal Curve The graph of the standard normal curve y = p(z) with different percentages areas is shown here. Since p(z) is a probability distributi
Cost The cost factor is a very important factor in determining the size of the sample. The budget for research should be properly decided. The management may not lik
Properties of Normal Distribution a.It is a continuous probability distribution having parameters m and . b.The normal curve is perfectly symmetrical about the mean (
disadvantages of model in operational research
Requisites of a Good Scientific Methods The essentials of a good scientific methods as summed up by the advisory committee on economic and social research of the council of
Operation research is only a Tool of Analysis and Not the Complete Decision making Process: It should always be kept in mind that O. R alone cannot make the final decision . it
What are the features of Operations Research?
Uses of Mode The use of the mode is recommended in the following situations: a.When a quick and approximate measures of central tendency desired. b.When the measure
Question A The basic characteristic feature of Operations Research is that it employs mathematical representations or models to analyse problems. Explain the methodology of Operat
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