We seem to have a lot of recent questions involving combinations, and
probabilities of combinations.
I am puzzled.
Are these concepts no longer taught as a fundamental starting point in stat?
I remember all the urn problems and combinations of n taken m times, with
and without replacements, the lot sampling problems, gaming problems, etc.
These were all preliminary, early in the semester (fall). Now to see these
questions popping up late in spring?
Times may have changed, since the 1940's, and perhaps there is more
important stuff to teach.
DAHeiser
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