OK I always see this sentiment. Can someone show something useful in RPN? House odds on 3 on roulette, or don't come odds for 10; or the standard deviation of

OK I always see this sentiment. Can someone show something useful in RPN? House odds on 3 on roulette, or don't come odds for 10; or the standard deviation of 1, 1, 1, 1, 7, 29. I have never seen anyone show an example more complex than 2 2 12 + * or whatever it looks like.