If there is a set probability for the outcome of an event (or a combination of events), then you can calculate the expected value. It is defined as the amount you can expect to win back when you look at gamble money. In mathematics, there is a term called expected value.
Then you can decide which lottery you want to participate in. You can scroll through the list of jackpots very easily.
Here, we list the various jackpots, ordered by size. Just take a look at the top area of our site. On our site, you can easily check the current jackpot amounts for Powerball, Mega Millions and a number of other lotteries from across the globe. Assuming that the price for a lottery ticket is the same, a bigger jackpot means a better value for your money. The size of the respective jackpot should play an important role when you decide whether to buy a lottery ticket or not.