In the Chapter 6 project McKenzie and I had found out if we had a sample of 6 people, how many could roll their tongue. We found this by using the binomial probability equation. When we plugged our data into the calculator we found that 15.1% of all the 6 people can roll their tongue. For our second scenario we had to figure out what percent couldn't roll their tongue. The probability that that less than 5 people can roll their tongue is 85.9%.