Next week we start probability, and I'm working on a Sage
worksheet<http://www.sagenb.org/home/pub/1445>for my students.  So far
I'm just working on ways to use Sage to represent
the typical textbook probability examples  - dice, cards, etc.  Since a lot
of my students are Jewish, I though the dreidel example might be good.

I have a few questions:

1.  In creating a frequency bar chart for the sums of two dice I found that
I had to pad my frequency array with [0, 0] to get the bars to match the
right category.  Is there a better way to do this?

2.  In representing a deck of cards I'm using symbolic variables for the
suits, aces, and face cards.  Unicode is supported in Python 3, so there
it's possible to access the actual symbols for the suits.  It's kind of fun
to be able to do that.  Is that possible currently in Sage?

3.  Does anyone have any other ideas for good ways to illustrate probability
using Sage?  This would be for an audience of high school students who are
very weak in their math but have passed Alg 2 and are motivated for
college.

Thanks,

Michel

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