1. The problem states that the mean is 30.2. 2. The mean (or average) of a set of numbers is calculated by summing all the values and dividing by the number of values. 3. The formula for the mean is: $$\text{mean} = \frac{\sum x_i}{n}$$ where $\sum x_i$ is the sum of all data points and $n$ is the number of data points. 4. Since the mean is given as 30.2, this means: $$30.2 = \frac{\sum x_i}{n}$$ 5. Without additional information about the sum or the number of data points, we cannot find the sum or $n$ individually, but we understand the relationship between them. 6. If you have either the sum or the number of data points, you can find the other using the formula: $$\sum x_i = 30.2 \times n$$ or $$n = \frac{\sum x_i}{30.2}$$ This completes the explanation of the mean given the value 30.2.