One of your friends likes buying scratch-off lottery tickets. One day, upon reading in the fine print that the probability that any given ticket is a winner is one in a thousand, he wistfully wishes aloud that he could afford one thousand tickets so that he could be sure to win. a) What's wrong with your friend's logic? If he could buy a thousand tickets, what's the probability he would win? b) How many tickets would he have to buy to have a 90% chance of winning