求翻译：数据来源于《天津统计年鉴》。样本包括的数据1980-1998。从表1可知，样本期间城镇居民人均可支配收入X是947.31元，样本期间城镇年人均消费性支出Y是792.97元。X的偏度和Y的偏度均大于0，轻度右偏。二者的峰值小于3，属于低峰值。偏度和峰度数据显示，X和Y都不是正态分布。是什么意思？

The data comes from Tianjin Statistical Yearbook. The sample consisted of data 1980-1998. From Table 1, the sample period of urban residents per capita disposable income x 947.31 yuan, the sample during the town's annual per capita consumption expenditure y is 792.97 yuan. skewness skewness of the x

Sources of data in the Statistical Yearbook of Tianjin. The Sample Data 1980-1998. Can be seen from Table 1, the sample period per capita disposable income of urban residents $947.31 is X Sample Period, cities and towns, per capita consumption expenditure of $792.97 is Y . The deflection and X Y of

The data originates from "Tianjin Statistics Yearbook".The sample includes data 1980-1998.May know from Table 1, the sample period cities inhabitant average per person may control the income X is 947.31 Yuan, the sample period cities year average per person consumption disburses Y is 792.97 Yuan.X s

Data from the Statistics Yearbook of Tianjin. Sample data that includes 1980-1998. From table 1, per capita disposable income of urban residents during the sample x is 947.31 Yuan, sampled during the urban per capita annual expenditures for consumption of y is 792.97. The x-offset and y-offset is gr

data sources in the Tianjin Statistical Yearbook. The Sample Data 1980-1998. Can be seen from Table 1, the sample period per capita disposable income of urban residents $947.31 is X Sample Period, cities and towns, per capita consumption expenditure of $792.97 is Y . The deflection and X Y of deflec