Here's a detailed explanation of how to find the mean.
1. Gather your set of numbers. Let's use the following set as an example: {12, 8, 15, 10, 7}.
2. Add up all the numbers in the set: 12 + 8 + 15 + 10 + 7 = 52.
3. Count the total number of values in the set, which is 5 in this case.
4. Divide the sum of the numbers by the total count: 52 / 5 = 10.4.
5. The result, 10.4, is the mean (average) of the set of numbers.
So, the mean of the set {12, 8, 15, 10, 7} is 10.4.
In summary, to find the mean, you add up all the numbers in the set and then divide the sum by the total count of numbers in the set. This gives you the average value, which represents the mean of the set.