The arithmetic mean (average) of the first 10 whole number is:

5 4 5.5 4.5

4.5

Given: First 10 whole number are 0 to 9 Formula used: Average of consecutive numbers = \(\frac{a + L}{2}\) Where, a = first number L = last number Calculation: Average of these numbers = \(\frac{0 + 9}{2}\) = 4.5