We can use the AVERAGE function to calculate the mean of numbers in a range. The AVERAGE Function can treat up to 255 different arguments. These arguments include numbers, cell references, ranges, arrays, and constants. The steps below will walk through the process.
Figure 1- Final result of the AVERAGE function
=AVERAGE (number1, [number2], ...)
- number1: This is a number or cell reference that refers to numeric values
- number2 [optional]: This is a number or cell reference that refers to numeric values
Setting up the Data
- The Branches of a store will be entered into Column B
- Column C, D, and E will contain the Sales for each of the stores for 3 days
- The mean or average sales for each branch will be returned in Column F
Figure 2 – Setting up the Data
Calculate Mean Sales for each Branch
- We will click on Cell F5
- We will insert the formula below into Cell F5
- We will press the enter key
Figure 3- Mean Sales for Vegas
- We will click on Cell F5 again
- We will double click on the fill handle tool which is the small plus sign you see at the bottom right of Cell F5. Select and drag down to copy the formula to other cells.
Figure 4- Mean Sales for Stores
- Any empty cell within the range is ignored by the AVERAGE Function
- The AVERAGE FUNCTION sums the numbers in the range and divides the sum by the total number of numbers
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