Selecting an answer

2 次查看（过去 30 天）

Sven 2011-11-7

Ok here's a brain-teaser type question. It's multiple choice. Enjoy :)

options = {'A','B','C','D};
myAnswer = options{randi(4)};

Now, what is the chance of "myAnswer" being correct for A,B,C,D below?

A) 25%

B) 50%

C) 60%

D) 25%

... and should I get the Statistics Toolbox to help me? :)

Andrei Bobrov 2011-11-7

options{randi(4)} - 25% 25% 25% 25%

Sven 2011-11-7

This video may help:

http://www.youtube.com/watch?feature=player_embedded&v=evKYF1G_uDI

LY Cao 2011-11-7

B, have any questions？

Sven 2011-11-7

hehe... please show your working? ;)

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