Pokemon Mechanics: Paralysis and Confusion

[Flare's flash]

This is an informational Thread about the status condition Paralysis/Confusion.
There will be 2 scenarios,each hidden by a spoiler tag.
I didn't know where to put this,as this pattern is in all Generations.

Paralysis/Confusion is annoying,isn't it?The move needed to defeat the next gym leader was prevented by that same status.However,did you notice a pattern in the times of Paralysis/Confusion,or did you take it as a 1/3 chance(Paralysis is 1/3 chance,not Confusion)?
A Pidgey here will be used as an example.

Scenario 1
Move Paralysis

Spoiler

Pidgey LVL 13
Moves:
Tackle
Sand-Attack
Gust
Quick Attack

Now,one of these moves is under paralysis!

OK,I'll explain.
One of these moves will constantly make you effected by Paralysis 3 times in a row!On the 4th time,you will use the move,but I highly suggest you don't try that.With Confusion,you'll just constantly hit yourself.

Scenario 2
Patterns!

Spoiler

Now the same Pidgey is under Paralysis,but it has a pattern.
It goes like this:

Move
Paralyze/Confusion
or
Paralyze/Confusion
Move
or
Move
Move
*Effect*
or
*Effect*
Move
Move
or
*Effect*
*Effect*
Move
or
Move
*Effect*
*Effect*
You get the Idea anyway.

Please tell me if Paralysis chance is 1/4 or 1/3.
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