A coin is tossed two times. The set of outcomes is
given as S = {HH, HT, TH, TT).
Let X represent the number of times heads
occurs.

The john deere company has found that revenue,in dollars, from sales of heavy-duty tractors is a function of the unit price p, in dollars, that it charges. if therevenue r is r(p)= -1/2p^2 +1900pa)how much revenue will the company generate if they sell 700 tractors? b) how many tractors does the company want to sell to maximize the revenue?