Hi,

This has been interesting reading.  I now have the test in front
of me along with the answer deemed correct by the professor.

I repeat it here verbatim:

   'The probability for six straight "heads" on 20 independent coin
    tosses is:
      a) 1/4
      b) 1/8
      c) 1/16
      d) 1/32
      e) 1/64 '

And the correct answer is supposed to be 1/64.
Should my wife send some of the other solutions to this
professor?

Jeff