Cash FTW

You have entered 133,611 Bills worth $350,883
Bills with hits: 9,380 Total hits: 10,606
Hit rate: 7.02% Slugging Percentage: 7.94% (total hits/total bills)
George Score: 1,270.48
Your rank (based on George Score) is #197
(out of 49,500 current users with a George Score. [99.6 Percentile])
Your State Rank in Florida is: 18 out of 7,932 [99.8]
Your initial entries with hits have traveled a total of 4,955,361 miles.
They have averaged 473.7 miles per hit and 194.95 days between each hit.

I saw two articles today that indicate that I should expect more hits. The first says that fewer people are using credit. The driving force seems to be that people don’t want it incur unnecessary debt, which is good advice in any economy. Not only will people have less debt but the stores don’t have charges associated with having the transaction processed.

The second article is reassuring people that cash won’t slow down checkout lines. Not only does it take about the same time, but not enough people are doing it that anyone has to worry.
Either way, it means that more of my bills will be given out as change.

And now for something completely different

You have entered 131,155 Bills worth $346,299
Bills with hits: 9,205 Total hits: 10,419
Hit rate: 7.02% Slugging Percentage: 7.94% (total hits/total bills)
George Score: 1,268.43
Your rank (based on George Score) is #199
(out of 49,660 current users with a George Score. [99.6 Percentile])
Your State Rank in Florida is: 19 out of 7,924 [99.8]
Your initial entries with hits have traveled a total of 4,879,028 miles.
They have averaged 474.9 miles per hit and 194.41 days between each hit.

For those of you that think that math has no real-world application, I present to you a case of statistical sampling. Very often, I will enter 100 or more bills at a time. Once in a while, I’ll have entered fewer bills than I should have. This means one of two things: either I was shorted a bill or I missed one.

Since I deal with banks and casinos, I’m dealing with people that are a bit paranoid about money and thus not likely to short me a bill. When I’m missing a bill like that, it means that I’ve skipped over one. You may ask how I can find one missing bill among 100, 200, 300 or more. Do I have to go through each bill?

I used to do that until I realized that I didn’t have to. That’s where statistical sampling comes in. Let’s say that I have 250 bills. I think I’ve entered all of them only to discover that I’ve actually entered 249. I count off 10 bills at a time and check the top bill against the recently entered bills.

The top bill on my pile should be the most recently entered bill. If I count off ten bills, the next should be the eleventh most recently entered. When I find one that doesn’t match, I’ve effectively narrowed it down to a range of ten bills; my missing bill should be in there. (If it’s not, I’ve probably miscounted.)

I know this may well be boring to most, but it is an example of how paying attention in math class can help.