Ask Your Question today
Examples:
"1 in 10 people have toe nail fungus."
"1 in 4 people drive a car."
"1 in 1 people die."
| 1 in 1 | 2 | |
| 3 in 4 | 3 | |
| 1 in 2 | 1 | |
| 1 in 4 | 2 | |
| 1 in 7 | 0 | |
| 1 in 10 | 1 | |
| 1 in 20 | 0 | |
| 1 in 50 | 0 | |
| 1 in 100 | 1 | |
| 1 in 1000 | 2 | |
| 1 in 10,000 | 0 | |
| 1 in 1,000,000 | 0 | |
| 1 in 1,000,000,000 | 1 |
I opted for 3-in-4 because 0.75 is the closest among the ratios given to 0.66..., and using a simple standard normal distribution and one standard deviation above/below the arithmetic mean, the area under the curve captures roughly 2-in-3 data points. Sure, there are many different natural distributions, but normal distributions exhibit a peculiar maximum entropy property which in part explains why an abundance of natural phenomena can be described as approximately normal--like human heights, health states in a given population.
{Ref: Leon-Garcia, A. (2008). Probability, Statistics, and Random Processes for Electrical Engineering. Pearson/Prentice Hall.}