Suppose the profit the company makes on each customer visit is $0.75 per dvd minus $0.05 "fixed costs." that is, if p = profit, then p x  0.75 0.05.  use a linear transformation of your results in (a) and (b) to find the mean and standard deviation for p.

Step-by-step explanation:

Given that the profit the company makes on each customer visit is $0.75 per DVD minus $0.05 "fixed costs."

i.e. Profit

= P(x) = 0.75 x - 0.05  where x is the no of dvds sold

E(x) =

(using linear transformation rules for mean)

VarP(x) =

Hence std dev P(X) = 0.75 std dev (x)

step-by-step explanation:

try remembering the steps

the thermometer is precise but not accurate

step-by-step explanation: