Don't know and it does not matter. I had to take 4 levels of stat in college to get my degree. Loved it, frankly. One of the basic principles is the quality and relevance of the "sample". For example, if you wanted to know how the population of the world felt about green beans, you could not possibly ask everybody, so you would determine what a relevant sample would be and use it to predict the opinion of the total population. You would NOT ask 100 people.
They have been keeping records on weather for what, 100+ years? I don't think they have a big enough sample to adequately predict anything or make statements like they are. While I am sure that archeology to some extent can help them expand their sample, a lot of that is going to be guess work.
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a �kid� (still am to a deree) about two I guess, my parents couldn�t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He�s been run over by a train, he�s gone forever!" Where did they find me? Perched up on the seat of the tractor. I�d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this �green planet�. I�m par
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