Mining Pool question

[herbie136]

Ok, forgive me if this sound like a stupid question but could someone help me understand pools, in particularly hashrates and blocks.

So... examples

Pool A has a pool hashrate of 500mhz with approx 10 miners and is finding blocks.
Pool B has a pool hashrate of 1500mhz with 1 miner and is not finding any blocks.

Should pool B be finding blocks and should it also out perform Pool A in terms of finding blocks?

Next question.....

Pool A - 3000mhz pool hashrate with 12 miners and finding blocks
Pool B - 1500mhz pool hashrate with 1 miner and not finding blocks.

Should Pool B still be finding blocks even though Pool A has a more miners and higher hashrate?

Many thanks.