Final answer:
The 3rd quartile is the value such that 75 percent of the observations are smaller and 25 percent are larger.
Step-by-step explanation:
The correct statement about the 3rd quartile is d. The 3rd quartile is the value such that 75 percent of the observations are smaller and 25 percent are larger.
The 3rd quartile is a measure of central tendency in a data set, where it divides the data into two halves. It represents the value below which 75 percent of the observations fall.
For example, if you have the data set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, the 3rd quartile would be 8, because 75 percent of the values (7 out of 10) are smaller than 8.
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