Sunday, May 29, 2005

Doodle a Doddle

Quote of the moment:
The new site seems to be working fairly well and we're still tinkering the user interface to make it even easier to use. With that in mind please note that new Weebl and Bob episodes will be appearing on Weebls-Stuff first and then on the old Weebl and bob Site.

How rude!

Today was a good day to game. I completed all the Arcade League levels on Time Splitters 2 (Jimmy, I own you) and played croquet with Sarah in exchange for helping her with her amusingly easy GCSE maths paper.

For example:

If there are 7 white balls and n yellow balls in a bag and one is picked out, put back and another picked out, what is the chance of pulling out a white one twice when n complies with:

2(n squared) - 35n + 98 = 0

(2n - 7)(n - 14) = 0

n = 14 or n = 3.5

Since you can't have 3.5 balls, there are 14 yellow and 7 white, so the chance of getting 2 white ones is:

1/3 x 1/3 = 1/9

Sarah got stuck on that, despite solving the equation (using x instead of n) in the previous part of the question. Ruined.

5 comments:

Rob said...

Woo, conditional probability. Win. I've gotta learn some crazy probability shit on Wednesday. Feel free to ask me how the exam I just had went.

Will said...

Lol. Yes, it's le hard.

How did your exam go?

Rob said...

yeh, it is hard. example:

You throw 2 dice. One of them is a six, what is the probabilty that the other is a 6?

My exam went alright, could've been better. Prolly a 2-2 or a 2-1. Shoulve been 80%+ really.

Jimmy said...

Well I might be able to beat you on Timesplitters if I'd had my cube more than you've had it.

Will said...

Shush fool, I've been working most of the time and have only played on it about 8 times... they just tend to be several hours at a time.

My "Insomniac" best in the stats is currently over 6 hours, I believe.