1. The problem is to find the estimated average of a given set of data. 2. The formula for the average (mean) of a set of numbers $x_1, x_2, ..., x_n$ is: $$\text{Average} = \frac{x_1 + x_2 + ... + x_n}{n}$$ where $n$ is the number of data points. 3. To calculate the average, add all the data values together. 4. Then divide the sum by the total number of data points. 5. This gives the estimated average value of the data set. 6. Please provide the data values so I can calculate the average for you.