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dice probability game with graph of results

Asked by Brian

Brian

on 15 Jun 2013
Accepted Answer by the cyclist

the cyclist

I have to create a simulation of a player throwing two dice (1:6) then summing the total of the two throws eg 3+4 gives 7. I have to count the number that gives a total of 6. I did that part fine, but I need a graph of the number of throws vs the number of throws which resulted in a 6 with a line showing the theoretical value, which the throws should converge to.

This is what I did:

r  = randi([1 6],1000,1);
d = randi ([1 6],1000,1);
e = r+d
out = e(6)
rangesLowValue = 6;
rangesHighValue = 6;
Numberof6s  = sum(e(:) >= rangesLowValue & e(:)<=rangesHighValue)
x=1:1000
plot(Numberof6s,x)  %Don't know what to do here. 

Thanks for any help.

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Brian

Brian

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1 Answer

Answer by the cyclist

the cyclist

on 15 Jun 2013
Edited by the cyclist

the cyclist

on 15 Jun 2013
Accepted answer

Try the cumsum() function instead of the sum() function, and I think you get what you intended.

You probably also want

plot(x,Numberof6s)

rather than

plot(Numberof6s,x)

1 Comment

Brian

Brian

on 15 Jun 2013

thanks man!! it worked

the cyclist

the cyclist

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