Statistica Afacerilor: Aplicaţii, Partea a doua (Business Statistics: Exercises, Part 2)

R. Stefanescu, Ramona Dumitriu
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Abstract

Romanian Abstract: Datorită simplităţii, extrapolările trendurilor sunt adeseori preferate în prognoza economică. Această lucrare include exemple de extrapolare a trendurilor liniare şi quadratice. Sunt prezentaţi, de asemenea, câţiva indicatori ai acurateţei previziunii.

English Abstract: Because of their simplicity, the trends extrapolations are often preferred in the economic forecasting. This paper includes examples of linear and quadratic trends extrapolation. There are also presented some indicators of the prediction accuracy.
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罗马尼亚文摘 要:在经济预测中,趋势外推是首选,因为它简单明了。我们可以举出线性和四分法趋势外推的例子。Sunt prezentaţi, de asemenea, câţiva indicatori ai acurateţei previziunii.English Abstract: Because of their simplicity, the trends extrapolations are often preferred in the economic forecasting.本文举例说明了线性和二次趋势外推法。文中还介绍了一些预测准确性指标。
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