Questions 2 & 3 please

2. On the eve of the 2016 U.S. presidential election, the poll-aggregating website 538.com predicted that Donald Trump had a 30% chance of winning. It's possible to wager on these sorts of things, believe it or not (with bookmakers or in "prediction markets"). On election night, right before 8:00pm EST, the "money line" odds on a Trump victory were +475. That means that a wager of $100 on Trump would carn $475 in profit, for a total final value of $575. Assuming the 538.com crew had the probability of a Trump victory right, what was the expected value of a $100 wager at 8:00pm at the odds listed? 3. You're offered three chances to roll a one with a fair die. You put up S10 and your challenger puts up $10. If you succeed in rolling one even once, you win all the money, if you fail, your challenger gets all the money. Should you accept the challenge? Why or why not? 2. On the eve of the 2016 U.S. presidential election, the poll-aggregating website 538.com predicted that Donald Trump had a 30% chance of winning. It's possible to wager on these sorts of things, believe it or not (with bookmakers or in "prediction markets"). On election night, right before 8:00pm EST, the "money line" odds on a Trump victory were +475. That means that a wager of $100 on Trump would carn $475 in profit, for a total final value of $575. Assuming the 538.com crew had the probability of a Trump victory right, what was the expected value of a $100 wager at 8:00pm at the odds listed? 3. You're offered three chances to roll a one with a fair die. You put up S10 and your challenger puts up $10. If you succeed in rolling one even once, you win all the money, if you fail, your challenger gets all the money. Should you accept the challenge? Why or why not