Data were collected on monthly sales revenues in 1000s and m

Data were collected on monthly sales revenues (in $1,000s) and monthly advertising expenditures ($100s) for a sample of drug stores. The regression line relating revenues (Y) to advertising expenditure (X) is estimated to be y

Solution

x= 1000/100 = 10    (because x axis in 100\'s)

put it in the equation

y = -48.3+9*10 =41.7

but y is in 1000\'s

so answer is 41.7*1000 = 41700 -----option D