rolling a dice 1000 times

Question

Shannu 2020-11-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/639480-rolling-a-dice-1000-times

评论： Shannu 2020-11-7

iam roll a dice 1000 times. i will win if i get i get even number else loose.

how much i win in 1000 times? how much avg i win?

function [win, avg]=dice(n)

win=0;

for x=1:n

r=ceil(rand(1)*6);

if modulo(r,2)==0

win=win+1;

end

avg=win/n;

endfunction

for n=1000:1003

[win,avg]=dice(n);

disp("No. of wins",win)

disp("Average",avg)

end

whats wrong in my code?

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Answer 1

Alan Stevens 2020-11-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/639480-rolling-a-dice-1000-times#answer_537100

在 MATLAB Online 中打开

mod not modulo. functions must come last in a script.

for n=1000:1003
    [win,avg]=dice(n);
    disp(['No. of wins ',int2str(win)])
    disp(['Average ',num2str(avg)])
end
function [win, avg]=dice(n)
    win=0;
    for x=1:n
        r=ceil(rand(1)*6);
        if mod(r,2)==0 
            win=win+1;
        end
    end
    avg=win/n;
end