Final answer:
The value above which 25 percent of the observations in a distribution fall is called the 75th percentile.
Step-by-step explanation:
The value above which 25 percent of the observations in a distribution fall is called the 75th percentile. In other words, the 75th percentile represents the point below which 25 percent of the data lies.
For example, if we have a distribution of test scores and the 75th percentile is 85, it means that 25 percent of the students scored below 85 and 75 percent scored above 85.
To find the 75th percentile, you need to sort the data in ascending order, count 25 percent of the total number of observations, and find the value that corresponds to that count in the data set.