spencerdcarlson

# Add sum, mean, & median to Array class
class Array; def sum; inject(:+) end end
class Array; def mean; sum.to_f / size end end
class Array
  def median(arry) 
    sorted = arry.sort
    medpt = arry.length / 2
    medpt1 = ( ( arry.length - 1 ).to_f / 2 )
    (sorted[medpt] + sorted[medpt1]).to_f / 2
  end