"6H4Ballast" wrote in message
That's fine by me as just 20% of hams who use HF
also use CW on a regular basis.

"20% of hams", or "20% of hams who responded to a particular survey"?

Now if you ran that same survey by a group of QRP homebrewers, the result
would be closer to 100%.

Statistics is a powerful tool only if care is taken in how the sample
population is chosen. But remember, the results only apply to that *sample*,
not an *entire* population (unless sample = entire, which is quite rare).

73, Jeff KH6O


--
Chief Petty Officer, U.S. Coast Guard
Mathematics Lecturer, University of Hawaii System