What is the mode of the following set of numbers: 2, 3, 4, 3, 5?

The mode of a set of numbers is defined as the number that appears most frequently within that set. In the given numbers—2, 3, 4, 3, and 5—the number 3 occurs twice, while the others (2, 4, and 5) each appear only once. Since mode is determined solely by frequency, the presence of 3 twice makes it the most frequent number in this set. Thus, the mode is correctly identified as 3.