3.8 The resistance (or capacity) R of a member is to be modeled using R= R„MPF where R, is the nominal value of the capacity determined using code procedures and M, P, and Fare random variables that account for various uncertainties in the capacity. If M, P, and F are all lognormal random variables, determine the mean and variance of Rin terms of the means and variances of M, P, and F.

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3.8 The resistance (or capacity) R of a member is to be modeled using R= R„MPF
where R, is the nominal value of the capacity determined using code procedures and M, P, and Fare
random variables that account for various uncertainties in the capacity. If M, P, and F are all
lognormal random variables, determine the mean and variance of Rin terms of the means and
variances of M, P, and F.
Transcribed Image Text:3.8 The resistance (or capacity) R of a member is to be modeled using R= R„MPF where R, is the nominal value of the capacity determined using code procedures and M, P, and Fare random variables that account for various uncertainties in the capacity. If M, P, and F are all lognormal random variables, determine the mean and variance of Rin terms of the means and variances of M, P, and F.
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