For use with Probability simulations. It opens with a list of 100 numbers between 1 and 5, and the count histogram. It will output a list of 100 random integers between 1 and whatever the Largest Integer is, as well as the count histogram. It works well with numbers up to 20. If you use numbers much larger than 20, the histograms will get weird. It takes a minute.

If you roll a die 100 times, how many times do you expect to roll a 4?
Simulate 100 rolls of a die.
How many 4s were rolled? Did the expected number of 4s match the number of 4s actually rolled?
How many rolls are less than 4?
How many are greater than 4?