Lillian is sitting on a bench in the mall. She noticed that 3 out of the last 15 men who walked by had a beard. What is the experimental probability that the next man to walk by will have a beard?
The experimental probability is calculated by taking the number of favorable outcomes (men with beards) and dividing it by the total number of outcomes (men walked by).
In this case, there were 3 men with beards out of 15 men walked by.
So, the experimental probability is 3/15 = 0.2 or 20%.
Therefore, the experimental probability that the next man to walk by will have a beard is 20%.