1 point You called Amazon customer service 5 times and noted your waiting times in minutes: 10, 12, 17,13,2 What is your average waiting time? Round your final answer to two decimal places. Type your answer.: 1 point You invited your classmates to a 'bring your own cookies' party. You made a note of the number of cookies brought by your classmates. A total of 30 classmates attended your party. The following table shows the number of classmates and the number of cookies they brought. What is the average number of cookies brought by a classmate? Round your final answer to two decimal places. Type your answer.. 13 1 point Bob proposes a risky investment opportunity to Alice with the following payouts and respective probabilities (negative payouts represent loss and positive payouts represent gain from the investment). Calculate the expected payout of this investment. (Hint: expected payout is same as the average or mean payout). Round your final answer to two decimal places. Type your answer.: 141 point Your friend offers you to play a game of chance with the following payouts. There is 73% chance that you win $100, otherwise you lose $20. What is the expected value of your payout if you play this game only ance