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

  a = [1,2,4,5,3,6]
  sorted = a.sort
  list = sorted.length
  if list %2 != 0
    puts sorted[list/2]
  else
    puts (sorted[list/2]+sorted[(list/2)-1])/2.0
  end