Negative numbers are easy to imagine if you think of the number line as
a giant thermometer which includes sub-zero temperatures. This makes
addition and subtraction easy, as you just move up or down the number
line by the according amount.

Straight statistics is a campaign set up by journalists and statisticians to improve the use of statistics by government, the media,
companies and everyone else who uses stats. On the Straight Statistics website you can find all sorts of interesting articles responding to
stats as they come up in the news - whether it's lucky house numbers, the impact of bird flu, or your chance to reach your 100th birthday.

It's time to get out those party invitations! Trouble is, your sister doesn't get on with your boyfriend, your boyfriend doesn't like your best mate, and your best mate's just broken up with your cousin. Who do you invite?

As the odds for a white christmas in the UK shorten and we rug up for another snowy weekend, let's look behind door #17 for the latest forecast...