defp majority(list) do
    largest = 0
    maj = []
    list |> Enum.group_by(&(&1)) |> Enum.each(fn {val,lst} ->
                                                case length(list) do
                                                  cnt when cnt > largest ->
                                                    largest = cnt
                                                    maj = [val]
                                                  cnt when cnt == largest ->
                                                    maj = [val | maj]
                                                end
                                              end)
    Enum.sample(maj)
  end