However, four only occurs 11 times and nine occurs 49 times. We can say then that it is a biased spinner because the number four occurs less than half of the number of times we would expect for a fair spinner and nine occurs much more often than we would expect.
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Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Is this game with a spinner fair? Asked 4 years, 2 months ago. Active 4 years, 2 months ago. Viewed 1k times. Taussig Griffin Griffin 23 4 4 bronze badges.
Also sharing your thoughts helps us give the best answers. Write the probability distribution for a single spin of spinner and the amount of tokens you win. The expected value is not zero, and the game is not fair. So you will lose about 0. Names of standardized tests are owned by the trademark holders and are not affiliated with Varsity Tutors LLC.
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Using Probabilities to Make Fair Decisions A probability experiment may be considered "fair" if all outcomes are equally likely, or in some cases if the expected value of some random variable is 0. Suppose you flip it three times and these flips are independent. What is the probability that it lands heads up, then tails up, then heads up?
Helpful tips. How do you know if a spinner is fair? How do you make a fair decision?
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