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Re: Coin Toss Sim

  • To: mathgroup at smc.vnet.net
  • Subject: [mg122413] Re: Coin Toss Sim
  • From: "Dr. Wolfgang Hintze" <weh at snafu.de>
  • Date: Fri, 28 Oct 2011 05:32:38 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <j89v28$8e$1@smc.vnet.net>

"pooleman133" <poolebc221 at gmail.com> schrieb im Newsbeitrag 
news:j89v28$8e$1 at smc.vnet.net...
>I am new to mathematica and am trying to make a coin flipping 
>simulation however mo code isn't working. When I tell it to count the 
>number of head it gives me a bad count. The code I am using is listed 
>below any help would be greatly appreciated.
>
> y[n_] := Block[{g, s},
>
>
>  g := RandomChoice[{"head", "tail"}, n];
>  s := Count[g, "head"];
>  {g, s}
>  ]
>
If I avoid RandomChoice it works fine:

y[n_] := Block[{g, s},
g := Table[If[Random[] < 1/2, "head", "tail"], {n}];
s := Count[g, "head"]; {g, s}]
y[10]

{{"tail", "head", "head", "head", "tail", "tail",
"tail", "head", "head", "tail"}, 3}
-- Wolfgang




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