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One example of this was the Missouri Lottery's promotion in the daily Pick 3. Normally a player has a 1/1000 chance of winning a $600 prize, making a $1 ticket worth only $0.60. The promotion was to draw a second winning combination on one randomly selected day of the week. Originally, the drawing to determine whether the bonus would occur that day held six white balls and one orange, but on the last day of the week, all six white balls had been removed, leaving only the orange ball and ensuring a double drawing on the last day.  This doubled the value of tickets for that drawing and converted them from an expected 40 percent loss to a 20 percent gain. See table 1 below for how the expected value varied that week.
Buying lottery tickets for fun once in a while won’t break the bank. Playing with money you don’t have, or that you will need later on, however, is a recipe for disaster. For those who decide to play responsibly, the good news is that a portion of the money that goes towards state lotteries is used for education and children’s programs. The only responsible way to play the lottery is to do so occasionally for fun, without any expectation of winning. When it turns into something else, you know it’s time to stop.