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Which of these is our preferred representation of the probability of winning a game of rock-paper scissors on the first go?

Which of these is our preferred representation of the probability of winning a game of rock-paper scissors on the first go?

Super Learner
0
Votes
1
Answer

In the first lesson of the probability course
 
I had this question: Which of these is our preferred representation of the probability of winning a game of rock-paper scissors on the first go?
and the answer was 0.3(3)
But I didn’t understand how
 

1 Answer

Super Learner
0
Votes

Hi,
 
Think of it this way:
 
What’s the probability of the opponent choosing a losing hand (rock, paper or scissors)?
 
Because there are only three possible outcomes with the same probability, they each are 1/3 = 0.33 probable to occur. The chance of you winning is the same as the probability of the opponent losing.