The PCB's use of faulty logic to interpret data reminds me of how the legal system works. One only has the read the constitution and see how the courts interpret the constitution to know that any resemblance between the two is entirely coincidental.
Just to buy into the argument, when talking of data, we usually mean a set of data (the word set is implied) and set is singular. So when Dilbert says "that (set of) data IS wrong" he is grammatically correct. Naturally, the UNION of the sets of data can be averaged.
Hi, I am the CRS database administrator. I'm pretty sure that the CRS and SIBS databases can be multiplied, but I know for sure that there is NO WAY the DATA/DATUM can be averaged ! ;)