Using the graph and the percentile concept, it is found that:
When a measure is in the xth percentile of a data-set, it is greater than x% of the measures and lesser than (100 - x)%.
In the graph:
The 20th percentile represents about 67 inches, meaning that 20% of the people in the group are shorter than 67 inches.
You can learn more about the percentile concept at https://brainly.com/question/24495213