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Write a method called average() that calculates the average of three numbers. Recall that an average is calculated by adding a group of...
X941: Writing a Method 3
Write a method called average() that calculates the average of three numbers.
Recall that an average is calculated by adding a group of numbers and then dividing by the the size of the group.
Your method will need to be named average and will need to return a double. It will need to take three double arguments as parameters and return the average (the sum of all three numbers divided by the number of numbers - or 3 in this case).
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