A lottery offers one $1000 prize, two $700 prizes, three $400 prizes, and five $100 prizes. One thousand tickets are sold at $7 each. Find the expectation if a person buys four tickets. Assume that the player's ticket is replaced after each draw and that the same ticket can win more than one prize. Round to two decimal places for currency problems The expectation of a person buys four tickets is… dollars

In gambling, the chances of winning are often written in terms of odds rather than probabilities. The odds of winning is the ratio of the number of successful outcomes to the number of unsuccessful outcomes. The odds of losing is the ratio of the number of unsuccessful outcomes to the number of successful outcomes. For example, if the number of successful outcomes is 2 and the number of unsuccessful outcomes is 3, the odds of winning are 2:3 (read "2 to 3") or 2 2 (Note: If the odds of winning are the probability of success is 3' 5.) 2 3 The odds of an event occurring are 3:1. Find (a) the probability that the event will occur and (b) the probability that the event will not occur.

A friend proposes a gamble to you. You roll 2 fair, six-sided dice, and add up the results of each die to find your total number. If your roll totals a 6 or 8, your friend pays you $30. If you roll any other total, you pay your friend $10. What is your expected payoff from playing this game 100 times?.

The student council is hosting a drawing to raise money for scholarships. They are selling tickets for $10 each and will sell 800 tickets. There is one $2,000 grand prize, three $400 second prizes, and sixteen $20 third prizes. You just bought a ticket. Find the expected value for your profit. Round to the nearest cent. $ 5.6 Hint: Hint