N1 2 n1n2 because we can factor the numerator now. Median n2 term n2 1 2. So if you divide both sides by 2 we get an expression for the sum.
The right side is 2 n - 1 2 1 - 1 1.
Where n is the even number These are the basic statistics formula to calculate the median of the given data. The said formula can prove it. Prove 1 2 3. We can find this formula using the formula of the sum of natural numbers such as.