Let X be a positive variable with E(X) =5 and E(X)^2 =31.25

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SUMMARY

The discussion revolves around finding an upper bound for P(X ≥ 10) using Markov's and Chebyshev's inequalities, given that E(X) = 5 and E(X)^2 = 31.25. Participants emphasize the necessity of demonstrating relevant equations and initial attempts at solutions to receive guidance. The focus is on applying statistical methods to derive bounds for probability distributions, specifically in the context of homework assistance.

PREREQUISITES
  • Understanding of Markov's Inequality
  • Familiarity with Chebyshev's Inequality
  • Basic knowledge of expected value (E(X))
  • Ability to manipulate inequalities in probability
NEXT STEPS
  • Study the derivation and application of Markov's Inequality
  • Learn how to apply Chebyshev's Inequality in probability problems
  • Explore examples of calculating expected values in random variables
  • Practice solving probability bounds using both inequalities
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Students studying statistics, particularly those tackling probability inequalities and seeking homework assistance in statistical methods.

Matt Wirtz
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Please find an upper bound for P(X>=10) using Markov's and Chebyshev's

Please state which is which. I'm not very good at stats and this is a homework problem :P

Thanks!
 
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Matt Wirtz said:
Please find an upper bound for P(X>=10) using Markov's and Chebyshev's

Please state which is which. I'm not very good at stats and this is a homework problem :P

Thanks!

Welcome to the PF, Matt. We require that you show the relevant equations and your attempt at a solution, before we can offer you tutorial help.

Please show us how you would start this problem's solution...
 
berkeman said:
Welcome to the PF, Matt. We require that you show the relevant equations and your attempt at a solution, before we can offer you tutorial help.

Please show us how you would start this problem's solution...

That's where i 'm a little lost on this one. I have no start but i need to learn how to at least. Step by step i guess.

I hope that's somewhat acceptable by your guy's terms :)
 

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