A sojourn through random territory by Henry S. Patricoff
The New York Stock Exchange Advance/Decline (A/D) figures, dice, and roulette have a bit in common
on a probability basis.
The figures are for these particular 6,500 trials. At some future sampling, they can be quite different, but
no doubt will meander above and below the probability line.
The following shows runs of 1, 2, 3, or more pluses in a row.