Monday, October 18, 2004

Girl Power... I hope

The neighborhood gerbil expert came over today and informed me that she believes the three gerbils my girl got last week are all female.
I really, really hope she's right.

3 comments:

Bob said...

I "think" that you have a 1 in 8 chance that all three of the gerbils will be female.

To start you have 3 gerbils with 6 possible outcomes (they could be male or female). Let's say you determine the gender of one of them so you then have 2 gerbils with 4 possible outcomes. Finally, after the second gerbil's gender is determined, you have 1 gerbil with 2 possible outcomes.

If you multiply 3/6 X 2/4 X 1/2 you get 6/48 which reduces to 1/8.

I haven't done probability in a while though so I could be wrong!

Bob said...
This comment has been removed by a blog administrator.
Anonymous said...

Assuming they're more than about five weeks old, the males will start thumping the females (and possibly other males). If you see no thumping, then they're all female.

-- Chosen