This paper addresses the effect of observational errors on the mean squared error, the mean bias error and the mean absolute deviation through the derivation of a statistical framework and Monte Carlo simulation. Examination of scaled differences
The AA. study the spatial distribution of metal concentration in soils and crops and determine abnormal differences in metal content between the samples and regional background. Statistical data reveal that the high level of metal concentrations
on 9.6 m2 of the bottom has been collected with a handnet and later on identified and counted. The interpretation of the data was done with the aid of statistical techniques and biological water assessment methods.
Spatial variations of soil moisture content at three dates of sampling, textural components and yield components of two rainfed crops (vetchoat mixture and durum wheat) successively cultivated on the same field are analyzed by using statistical