What is the median of the set {3, 5, 7, 9, 11}?

To find the median of a set of numbers, you first need to organize the data in ascending order, which in this case is already done: {3, 5, 7, 9, 11}. The median is defined as the middle value of a dataset.

Since there are five numbers in this set, which is an odd total, the median is the number that is located in the center of the ordered list. In this case, the middle number is the third number of the set (counting from left to right), which is 7.

Thus, the median of the set {3, 5, 7, 9, 11} is indeed 7, making it the correct answer. This process works similarly for any odd-numbered set of data, where the median is found by identifying the central value after organizing the dataset.