Adam Adams wrote....
$40 in ten minutes equates to $240 an hour. I have lost $100 in 20 minutes playing 25c 9/6 job, that would be $300 in just one hour.
Losing $40 in 10 is much more likely than losing $240 in an hour. I don't have Dunbar's excellent risk analyser handy but will relate a simpler example that illustrates the point. Let's use the familiar coin flip example. Getting 2 or less correct out of 10 flips has a probability of 5.4%. Getting 4 or less out of 20 flips has a prob of 0.59%.
Rare events in the short run ( 1 quad in 2000 hands) are much more likely than the corresponding event over more samples ( 10 quads in 20000 hands).
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