The mean is also known as the average. To find the mean/average, we add up all of the given numbers and then divide by the number of numbers we added up.
In this case, our numbers are 4, 2, 7, 4, and 3, and there are 5 numbers total.
Mean = (4 + 2 + 7 + 4 + 3) / 5
Mean = 20 / 5
Mean = 4
Answer: Mean = 4
Hope this helps!