Lotteries are big business and a major revenue source for many governments. According to the North American Association of State and Provincial Lotteries, all but seven states in the United States have some type of lottery, and in 2010 these lotteries generated a national total of $78 billion in sales. About one-fourth of that money ($19 billion) ended up as state revenue, with the rest going to prizes and expenses.

1. Based on the data above and the U.S. population of approximately 315 million, how much does the average American spend on the lottery each year?

2. Surveys indicate that fewer than half of all Americans play the lottery in any given year. If half of all Americans play the lottery, what is the average spending per lottery player?