3. (1) Using UCB for demand learning, select arm with index} = argmaxj- E + i) what role "JJTT: does in play here and why? I J (2) Suppose each period you need to choose a price among {3, 4, 5} to maximize revenue, and now you are at the beginning of period 7. You have all the historical data from periods 1-6. Let p(t) and d(t) be the price and demand you observed during period t. You have, p(1)=3, d(1)=10; p(2)=4, d(2)=8; p(3)=5, d(3)=7; p(4)=4, d(4)=5; p(5)=4, d(5)=7; p(6)=4, d(6)=8. Let K=1. What price to pick for period 7 and why