sh_ and ch_ compose the same words

[farmerjohn]

To check if there is a relation between words containing 'sh' and words containing 'ch' it is only necessary to count them.

There is no doubt that EVA-sh is somehow related to EVA-ch (at least because they belong to the same alphabet ). The question is how are they related. Let's do some calculations related to original question of the thread.

Let's assume EVA-sh and EVA-ch represent the same thing, and author chooses one of them randomly with probability 50% each. I used MarcoP's graph, You are not allowed to view links. Register or Login to view. and You are not allowed to view links. Register or Login to view. tool for calculations.
We have 427 occurences for EVA-shedy and 501 for EVA-chedy. The probability that out of 928 equally probable events the outcome of one of them is 427 or less is 0.83%. Say 1 to 100. That not too optimistic, but not so improbable itself. The thing is that when we take EVA-shol and EVA-chol, and then EVA-shey and EVA-chey, we will get roughly the same results, and since our three tests are independent we have right to combine them.. Our 1 to 100 quickly becomes 1 to 1000000 and a lot of words still coming...

Ok, let's assume the probability value was wrong. Take three first word pairs from MarcoP's graph and assign probability manually. I've got 42% for EVA-sh words. But take EVA-sho (130 occurences) and EVA-cho (69). The probability that 42%-percent event will happen 130 times out of 199 is 0.0000000029%.

Well, maybe try yet another probability? One can try all possibilities, but for me it's obvious that every choice will fail. Eva-sho/cho and EVA-shedy/chedy stats are very likely to be incompatible, seems that their confidence intervals hardly intersect.

So the choice between EVA-sh and EVA-ch isn't random. If so it depends on context. But given the same context (EVA-edy) only one of EVA-shedy/chedy should exist. But who said the context is only next symbols? It maybe previous ones, or even ones from previous paragraphs, or missed vowels in case of abjad? But then EVA-sh and EVA-ch appear to be not so similar as it seemed before...