Oh, what a happy little math question we have here! To find the four numbers, we can start with the median, which is 6. We can then choose two numbers less than 6 and one number greater than 6 to balance it out, like 4, 5, 6, and 7. This way, when we find the mean by adding them up and dividing by 4, we get 5. Happy calculating!
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1,3,5,5,6
4, 5, 5, 8, 8
1, 4, 10
The mean is the average, total the members of the set and divide by the number of members. 3 + 4 + 8 = 15 divided by 3 = 5 The mean is 5. The median is the middle number of any given set when they are in order, least to greatest. The median is 4.
You calculate the arithmetic mean of the two middle numbers. For example, to find the median of {1, 7, 4, 2, 5, 8} the middle two numbers of the ordered set are 4 and 5, whose average is (4+5)/2 = 4.5. So the median is 4.5