I believe that there are other planets with life on them in the Universe, but there is no specific planet I know of that has life on it.
Assuming you mean other than Earth
I thought that was clear from the first sentence where I said "I believe there are other planets with life on them".
- why would you believe in something for which there is no evidence?
Probability. If I throw a dice and conceal it before anybody sees it, would you believe I had thrown a six? Probably not. If I threw a thousand dice and concealed them all before anybody saw them, would you believe that at least one of the throws was a six? I'd hope so, in spite of the fact that you have no evidence that any particular one came up six.
Yes, because with the dice we have exactly the data we need to make that statistical analysis. With planets we just don't.
We know if it is a six sided dice that after a thousand throws it is likely to have turned up something in the region of 166 sixes. But if it was a thousand sided dice we would not be so sure. If it was a million sided dice we would think it unlikely to throw a six after a thousand throws.
In the case of life on other worlds we have not the foggiest idea how many sides the dice has.
You and floo keep bandying around the word "statistics" - ok then tell me the statistics. And I mean real statistics, not the joker from the sixties who just preloaded his equation with lots of completely arbritary "let's say"s . One in how many planets has life on it? One in a thousand? One in a billion? On in
x, where
x = the number of planets which actually exist? Go on - your belief is based on stats, so tell me the stats.