Just before this BBC podcast gets underway, here's something you may not know.

My name's Linda Davies and I Commission Podcasts for BBC Sounds.

As you'd expect, at the BBC we make podcasts of the very highest quality featuring the most knowledgeable experts and genuinely engaging voices.

What you may not know is that the BBC makes podcasts about all kinds of things like pop stars,

poltergeist, cricket, and conspiracy theories and that's just a few examples.

If you'd like to discover something a little bit unexpected, find your next podcast over at BBC Sounds.

You're listening to a more or less podcast from the BBC.

For more information about the programme, please go to the website BBC.co.

UK slash Radio 4.

Hello and welcome to more or less, your weekly guide to the numbers in the news and in life.

This week we intervene in another mathematical marital misunderstanding.

I've had an ongoing argument with my husband who insist the odds of getting six consecutive numbers in the lottery, i.e.

one, two, three, four, five, six are higher than getting six random numbers.

As the price of a train ticket rises yet again, we'll ask how the cost of UK rail travel really stacks up against continental

opposition. But first, the conviction this week of Gary Dobson and David Norris

for the murderer of Stephen Lawrence 18 years ago

is a good example of how important scientific evidence has become in the courtroom.

The verdict hinged on tiny bits of circumstantial evidence, including clothing fibers and blood stains.

One way to make sense of evidence like this is by analyzing it statistically.

How, for example, might Stephen Lawrence's DNA have got onto the suspect's clothes?

What was the chance that contamination might have happened, as well as the small odds of someone

else having the same DNA profile.

...