But you might say, “If the chances of winning are so small, how did Mark and Cindy Hill win?” Or said another way, “If they can do it, why can’t I?” I’ll explain that in a future post.
It is not my purpose or place to discourage people from buying lottery tickets. For simplicity, let’s be generous and round off to an even 175,000,000.
Now imagine that you walk, bike or drive for as long as you want around the double loop, and when you decide to stop, you stoop over and pick up one dollar bill. But one in 175 million cannot be readily visualized.. Then we’ll still have enough to go clear across the country to Disneyland! But, even then, we are not out of dollar bills, so we can go north and make it all the way to Portland, Oregon. In Powerball, a player first picks five different whole numbers between 1 and 59. That seems tiny, and it is. So, we will lay them out end to end. How long will that line of dollar bills go?
Do we have any dollars bills left? Yes! We would still have enough dollar bills to go all the way around the loop a second time!
For some reason, we tend to associate unlikely events with a specific physical phenomenon. Still, we have dollar bills, enough to make it all the way east to Portland, Maine. Your chance of selecting the lucky dollar bill is one in 175 million, the same as your chance of winning the Powerball jackpot!
If we start from my house, we’ll have enough dollar bills to go all the way south to Disney World in Orlando. One could make a list of all the possibilities, starting with (1, 2, 3, 4, 5), (1, 2, 3, 4, 6), and so on all the way through (55, 56, 57, 58, 59). We realize being struck by lightning is unlikely, but we have no sense of how unlikely, and of course the chance of being struck by lightning is much different for a farmer than a coal miner.
After choosing the five numbers between 1 and 59, the player then picks another number between 1 and 35 that is called the Powerball. But it would take a long time to make that list, because it has more than five million entries! Indeed, mathematics tells us the number of ways to choose five distinct numbers from 1 to 59 is 5,006,386.
In November 2012, a Missouri couple and an Arizona man shared the largest Powerball jackpot ever — $587 million. In fact, it is so small that it is difficult for us to grasp. “I have a better chance of being struck by lightning,” we often say. And, fortunately, we’ll have enough to make it back to my house near DC, completing the loop.
The problem with grasping the smallness of “1 in 175 million” is that we never see 175 million distinct objects. So, we multiply the 5,006,386 by 35 and see that there are 175,223,510 possible Powerball combinations. But that does not provide much of a basis for comparison. Such stories lead us to daydream about what we might do if we won all that money.
Your chance of winning the lottery on a single ticket is one in 175 million. An article about the Missouri couple — Mark and Cindy Hill — appeared in The Huffington Post on February 25 telling a wonderful story about how the couple is using their winnings to benefit their community. Once these arrive, they will have to be unloaded, of course, so you will have a fair chance to pick the lucky dollar bill. We can get our minds around 1 in 75,000 (roughly) by visualizing the crowd of people at the Super Bowl and imagining ourselves being the one person selected from that crowd to win a prize.
Here is an example I have used in classrooms all over the country, and it is way more fun than thinking about being struck by lightning! Imagine 175 million freshly minted one-dollar bills are being delivered to my house near Washington, D.C. It is easy to grasp 1 in 50, for example, because we can imagine ourselves with 49 other people in a room. One of those dollar bills is specially marked as the “lucky dollar bill.” You get to pick a dollar bill, and if you happen to pick the lucky dollar bill, you win all the dollar bills.
What are your chances of winning? A quick look at the Powerball website tells you the probability of winning the jackpot is 1 in 175,223,510. It isn’t going to happen. Understanding how small this number is provides the key to understanding how likely — or unlikely — it is you will become the next big winner of the Powerball jackpot.
Your chance of ever winning this big jackpot is impossibly small. I just want everyone to understand their chances as fully and accurately as possible.
Wasserstein is executive director of the American Statistical Association, a former statistics professor at Washburn University and an expert on state lotteries.
A straightforward mathematical calculation using the dimensions of a dollar bill reveals it will take two semi-trailers to deliver the 175,000,000 dollar bills to my house. To see where that number comes from, imagine purchasing every number combination
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