The Shoebox of Pennies Example

Let's suppose you have a shoebox with 100 pennies in it. They are "fair coins" meaning that there is truly a 50/50 chance of heads or tails. For each trial, you shake the shoebox and count how many coins land on "heads" or "tails." Notice that, with less trials, the data looks non-normal, and your results can be unexpected (it might appear that heads is more likely than tails or the other way around). As you add more trials, your histogram will look more like a normal curve, and your probability of heads or tails will appear to be much closer to 50%.

Generate single-line trial reports.

Create a histogram for the aggregated trials.

Based on only the trials you've run, here's the probability of heads vs tails. Keep in mind, that if you're dealing with a fair coin, theoretically, the probability should be .50. Notice with fewer trials, the probability is less accurate.