40% of 1820 + 80% of 630 = 90% of 1280 + ?
40% of 1820 + 80% of 630 = 90% of 1280 + ? 728 + 504 = 1152 + ? ? = 80
The credit manager at a Departmental store collects data on 100 of her customers. Of the 60 men, 40 have credit cards (C). Of the 40 women, 30...
In a bivariate regression equation of Y on X consisting of 20 observations, the explained and unexplained variations are 40 and 60 respectively. Calcula...
Calculate Domestic Income: