[Avodah] Dechiyot

[Simon Montagu]

On 12/28/06, Aaron Gal <agal at haieramerica.com> wrote:

> I am trying to find a table that shows the following:
> 1. What is the percentage of cases that Rosh Hashana falls on the Molad,
> with no any Dechiyot?
> 2. What the most common Dechiya? what percentage? is it Molad Zaken ?
> 3. What is the next one?

http://www.geocities.com/Athens/1584/index.html#24.3 gives these answers:

1. 39.0%
2. Lo Ido Rosh (42.9%)
3. Molad Zaken (14.3%)

After looking it up I realized that one could have deduced these
percentages logically: Lo Ido Rosh is obviously going to kick in in 3
years out of 7, and Molad Zaken in a quarter of the remaining years,
i.e. 1 out of 7.

Follow-up question: am I the only person who says "Lo Ido Rosh" rather
than "Lo Adu Rosh", and does anybody know why I do so?