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Chebyshev's Theorem 統計題目怎麼算

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Assume that that average annual premium for health care insurance for an employeeis $1920 per year with a standard deviation of $160 per year that the distribution ofthese data is not bell-shaped. find the interval of annual premiums that will includeat least the followa) 75% of the employees around the... 顯示更多 Assume that that average annual premium for health care insurance for an employee is $1920 per year with a standard deviation of $160 per year that the distribution of these data is not bell-shaped. find the interval of annual premiums that will include at least the follow a) 75% of the employees around the mean b) 85% of the employees around the mean c) 94% of the employees around the mean plz help me~~~~thank you!!!!

最佳解答:

X has a mean μ and a standard deviation σ. Chebyshev's theorem claims that for any k > 0, Pr( | X - μ | ≥ kσ ) ≤ 1/k2 or Pr( | X - μ |

 

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