# Probability & Statistics : Chebychev Inequality

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Suppose that a probability distribution has a mean 20 and standard deviation 3. The Chebychev inequality states that the probability that an outcome lies between 16 and 24 is:

a. less than 7/16

b. at least 7/16

c. at most 1/4

d. at least 1/4

e. none of the above

https://brainmass.com/math/probability/probability-statistics-chebychev-inequality-44446

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