Median is the middle number so you need to put them in order from the smallest to the largest and find the middle number. If this is two numbers you need to add them together and divide by two!
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Then that is the median. A median does not have to be a whole number. It can be a decimal number, even when the set of the numbers you are getting the median for are all whole numbers.
When numbers are put in order either least to greatest or greatest to least, the one in the middle is the median. In an even set of numbers the average of the middle two numbers is the median. 30.5 is the median of these 3 numbers.
Find the average. That is, add all of the even numbers together, then divide that by the number of even numbers.
Take the mean (or average) of the two middle numbers.
If you have an even set of data then there are two middle numbers or medians. Average those two and create a median. Example: 2,3,4,7,9,10 4 and 7 are in the middle. (4+7)/2=5.5 5.5 is the median even though it is not one of the numbers in the data set.