Mathematics for IGCSE & O level - Categorical, Numerical And Grouped Data (Section 9 - No. 3)
What is the correct formula for calculating the mean?
(Largest data value - Smallest data value)
Sum of data values / number of data values
(Sum of data values / 2)
The most frequently occurring data value
Explanation
The mean is found by adding up all the numbers and then dividing by how many numbers there are.