What is the mean of the numbers 5, 10, and 15?

To find the mean of a set of numbers, you first need to add all the numbers together and then divide that sum by the total number of values in the set. In this case, the numbers are 5, 10, and 15.

First, add these numbers together:

5 + 10 + 15 = 30.

Next, count how many numbers there are in the set. There are three numbers in total.

Now, divide the sum by the total number of values:

30 ÷ 3 = 10.

Thus, the mean of the numbers 5, 10, and 15 is 10. This calculation focuses on the average value represented by the given numbers, which is essential in statistics as it provides insights into the central tendency of a set of data.