Dice shots_2
============

To conduct a statistic survey, several shots of two dice are
performed. The two dice are shot simultaneously and the results are
recorded in a list. Each element in the list is a tuple with two
integers from 1 to 6: the values shown on the upper face of both dice.

Write a function :py:func:`dice2` that takes the list of results of
the shots and returns the percentage of shots in which both dice show
the same result. Save the function in a module named ``dice.py``. Examples:

   .. literalinclude:: dice.txt
      :language: python3
      :lines: 3-
             
   .. note::
    More tests are provided in the :download:`dice.txt<dice.txt>` file.

.. rubric:: Solution
      
A solution of these functions is provided in the
:download:`dice.py<solutions/dice.py>` file.