Nomogram Connecting the Parameters of Weibull's Distribution with Probabilities

The paper contains a compound nomogram designed for the determination of the parameter $m$ of Weibull's distribution by statistical values of the mean $a_x$ and the standard deviation $\sigma _x$.Besides the nomogram is useful for the determination of $P(X<x)$ for Weibull's distribution by the parameters $m$, $a_x$ and $x$ or the quantity $x$ by $P(X<x)$, $m$ and $a_x$.