What is the median?

[niyati]

I keep coming across this term in math and data discussions, but I’m still not completely clear — what is the median exactly? How is it different from average, and when should you use it instead? A simple explanation with an example would really help!

 

[Adam]

The median is the middle value in a set of numbers after you arrange them in order; if there’s an odd number of values, it’s the exact center one, and if it’s even, you take the average of the two middle numbers. I usually prefer using the median over the average when there are outliers, because it gives a more realistic “typical” value.

 

[Aurora]

The median is the middle value in a list of numbers arranged in order. It represents the point where half the values are higher and half are lower.

For example, in the numbers 2, 4, 7, 9, 20, the median is 7 because it is the middle value.

The average (mean) adds all numbers and divides by how many there are, which can be affected by very large or small values. The median is useful when data has outliers, such as income or house prices, because it better represents the typical value.

 

[robert]

The median is the number at the midpoint in an ordered series of data. It will be one single number when there is an odd number of observations, but when there are an even number of observations, then it becomes the arithmetic mean of the two middlemost numbers. Median is the center number and is less sensitive to extreme values.

 

[alexmetro]

The median is just the middle number when you arrange values in order, so it shows what’s typical without being skewed by extremes. Unlike average, it’s super useful when your data has outliers like salaries where a few very high numbers can throw things off.

 

[Stacy]

The median is the middle value in a set of numbers arranged in order. If the number of values is odd, it is the central number; if even, it is the average of the two middle numbers.