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- W2380542712 abstract "By introducing the approach of multivariate regression analysis,the relationship between Chinese welfare lottery sales and 22 social and macro economic predictor variables was discussed and the crucial predictor variables,which remarkably influence the lottery sales,were selected.Moreover,we found that there was strong dependence among the residual which was obtained by fitting the data of different years.Using the principal component analysis,the common information of the residual among different years was extracted and the prediction equation was obtained.Using the equation suggested by the author,the lottery sales in year 2007 were predicted.The similarity between the fitted values and the real data in year 2007,which was measured by the average percentage of predicted error,fully reveals that our model may be effective for the real application of the prediction of lottery sales in China." @default.
- W2380542712 created "2016-06-24" @default.
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- W2380542712 date "2009-01-01" @default.
- W2380542712 modified "2023-09-27" @default.
- W2380542712 title "The Acting Factor Analysis and the Prediction Based on the Principal Component Analysis of the Residual of Chinese Welfare Lottery Sales" @default.
- W2380542712 hasPublicationYear "2009" @default.
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