ABCDEFGHIJKLMNOPQRSTUVWXYZ
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Risk of ruin calculator
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InstructionsInput data per decisionI) Survival criterion -- 565 rounds
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enterreconcile
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1) Enter or change figures in the orange cells.edge (ev)-0.0055-0.0055
Risk of ruin
49.9728%
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Edge, std deviation, and variance are perstd deviation1.141.14
Prob of survival
50.0272%
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unit bet. Enter either std deviation orvariance01.2996
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variance (set the other at zero). If youbankroll$200$200nw0.1968978031
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enter values for both, and they disagree,bet size1010Nl0.2665117664
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final results will be wrong.win goal$200$200rb1.184455122
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2) Read final probabilities in orange cells.rounds565565
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II) Profit criterion
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a) even-money equivalentb) power lawc) exponential
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Risk of ruin54.221929%Risk of ruin54.222026%
Risk of ruin
54.221994%
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Prob of success
45.778071%
Prob of success
45.777974%
Prob of success
45.778006%
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even-money bet size
1.1400132671+e/s0.9951754386rw1.184455122
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even money prob
0.49758774741-e/s1.004824561r(c+w)1.402933936
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q/p1.009695788unit win20
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unit bank+win35.08731095unit bank20
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unit bank17.54365547
x=(1-e/s)/(1+e/s)
1.009695901
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r(c+w)1.402937622
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rw1.184456678
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