find the mean of the following:
489, 560, 423, 550
Add them together and divide by 4.
http://www.regentsprep.org/regents/math/algebra/AD2/measure.htm
Add all of the numbers: 489, 560, 423, 550.
Then, divide the sum of the numbers by 4 since that is how many numbers there are.
What do you get?
2,022/4= 505r.2
To find the mean (also known as the average) of a set of numbers, you need to sum up all the numbers and then divide the sum by the total count of numbers.
For the given set of numbers: 489, 560, 423, 550
Step 1: Add up all the numbers.
489 + 560 + 423 + 550 = 2022
Step 2: Determine the total count of numbers.
In this case, there are 4 numbers.
Step 3: Divide the sum by the total count.
2022 ÷ 4 = 505.5
Therefore, the mean of the given numbers is 505.5.