Calculate the Average: Finding Mean of 4 Numbers with Sum 20

To solve this problem, we'll follow these steps:

• Step 1: Identify the number of values for which we are calculating the average. In this case, it is $4$.
• Step 2: Identify the given total sum, which is $20$.
• Step 3: Use the average formula to calculate: Average = $\frac{\text{Sum}}{\text{Total Count}}$.

Now, let's work through each step:
Step 1: We know that we are dealing with $4$ numbers.
Step 2: The total sum of these numbers is given as $20$.
Step 3: Using the formula for the average, we calculate:
$\text{Average} = \frac{20}{4} = 5$.

Therefore, the solution to the problem is $5$.