Do you understand what happens when a computer takes all the data of a player like Kershaw and then spits out 1,000 sample sizes of 189 IP by randomly accumulating the data?
Yes or no?
If you answer yes, then good. Maybe you do get at least that part of my point.
Now, next question: do you think the 1,000 sample sizes the computer spits out will all look identical to each other, or will some come out with an accumulated ERA of, let's say 4.19 or more and maybe some with maybe 1.19?
Yes or no?
If you answer no, you don't understand what random samples mean or how the populate a chart. Some will come out looking extreme, while most will look near his norm.
My point is, if random samples can and do produce a sample that looks just like Kershaw's actual sample, how can you prove it's not just a random occurrence?
You can't. Just like I can't prove the reason is the higher pressure.
It seems weird that Kershaw does better with RISP and clutch moments during the season, but then turns into a pumpkin under the "extra" pressure of the playoffs.