If I may add to the postings that preceded this one....
What is equally, or more, important is _how_ you use the measurements. the number of children per family in the USA is now around 2.2. No family has 0.2 children. But we still consider that the number, 2.2, has meaning. Thus, the number of children per family is discrete, but it is used as a continuous variable.
Well, what if you have a foster child ... ? Could that be a legit .2?
Dennis Roberts
[EMAIL PROTECTED]
http://www.personal.psu.edu/users/d/m/dmr/droberts.htm
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