Hi Sam, I do appreciate that it can be confusing at first until it all clicks into place (I promise you it will).
4 MG
15 MG
21 LG
31 MG
If you were were to think of it as a line of people LG represents young people, MG middle age people and HG older people. They are randomly lined up and you go up to the first person and ask them how old they are. The first person is 20. OK you reply you are LG. Tell the person next to you that you are LG. The person next to him is also LG. So he in turn tells the person next to him that he was told by the other person that he was LG, I am also LG, so the third person in the line knows that there are at least 2 LG next to him. This could well repeat a few more times until an LG tells a person next to him who happens to be an HG. The person who is HG knows that the person to the right of him is an LG and that he himself is an HG so he informs the person to the left of him. This person is an MG so he knows that he has completed a section. The process starts again by asking the next person how old they are etc etc etc.
If you had a line of a 100 people you could ask all those that completed a section to step forward.
The first Group of a section must have one representitive of that section so in effect you can ignore the 4 MG as 15 MG will be the representitive of the first Group. 21 LG for the second Group and finally 31 MG for the third part of the section.
I hope this helps, I promise not to hate you if you need further clarafication
Richard
olinet a écrit:olinet
je la connais parfaitement ca methode et je suis en train de la tester
Cordialement a tous
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