Is there an upper bound for the mean of a ratio between two random variables?
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Is there an upper bound for the mean of a ratio between two random variables ?
statistics random-variables means ratio expected-value
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$begingroup$
Is there an upper bound for the mean of a ratio between two random variables ?
statistics random-variables means ratio expected-value
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Please give substantial setup for your problem, and also add context (why is this problem important or difficult).You will need to know something about the distributions of the two random variables. In particular if there is a positive measure for the denominator to be near zero, then some examples can be given to show the ratio may not have a finite expectation (mean).
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– hardmath
Jan 18 at 18:52
add a comment |
$begingroup$
Is there an upper bound for the mean of a ratio between two random variables ?
statistics random-variables means ratio expected-value
$endgroup$
Is there an upper bound for the mean of a ratio between two random variables ?
statistics random-variables means ratio expected-value
statistics random-variables means ratio expected-value
asked Jan 18 at 17:50


Mohamed ShehataMohamed Shehata
12
12
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Please give substantial setup for your problem, and also add context (why is this problem important or difficult).You will need to know something about the distributions of the two random variables. In particular if there is a positive measure for the denominator to be near zero, then some examples can be given to show the ratio may not have a finite expectation (mean).
$endgroup$
– hardmath
Jan 18 at 18:52
add a comment |
$begingroup$
Please give substantial setup for your problem, and also add context (why is this problem important or difficult).You will need to know something about the distributions of the two random variables. In particular if there is a positive measure for the denominator to be near zero, then some examples can be given to show the ratio may not have a finite expectation (mean).
$endgroup$
– hardmath
Jan 18 at 18:52
$begingroup$
Please give substantial setup for your problem, and also add context (why is this problem important or difficult).You will need to know something about the distributions of the two random variables. In particular if there is a positive measure for the denominator to be near zero, then some examples can be given to show the ratio may not have a finite expectation (mean).
$endgroup$
– hardmath
Jan 18 at 18:52
$begingroup$
Please give substantial setup for your problem, and also add context (why is this problem important or difficult).You will need to know something about the distributions of the two random variables. In particular if there is a positive measure for the denominator to be near zero, then some examples can be given to show the ratio may not have a finite expectation (mean).
$endgroup$
– hardmath
Jan 18 at 18:52
add a comment |
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$begingroup$
Please give substantial setup for your problem, and also add context (why is this problem important or difficult).You will need to know something about the distributions of the two random variables. In particular if there is a positive measure for the denominator to be near zero, then some examples can be given to show the ratio may not have a finite expectation (mean).
$endgroup$
– hardmath
Jan 18 at 18:52