Find the median of an array

Question

I wrote some code that returns the median of an unsorted odd numbered array, but it does not return the median of an even numbered array.

I know that in order to find

Answer 1

I'm going to just jump in with a solution here...

def median(ary)
  mid = ary.length / 2
  sorted = ary.sort
  ary.length.odd? ? sorted[mid] : 0.5 * (sorted[mid] + sorted[mid - 1])
end

Edit - I've incorporated .odd? as per BroiSatse's suggestion.