An improved equation and graph paper for log-normal evaluations

5 An improved equation and graph paper for log-normal evaluations Using equation (2.59) and the relationship [94]  

This form of the log-normal equation is more convenient for use since the variable (r) only appears once. Equation (2.95) may be written in the simpliEed form  

The relationship between geometric mean and mode [equation (2.93)] takes the form  

This modified form of the log-normal equation simplifies parameter determination from log-probability plots of experimental data. The graph paper may be furnished with additional scales of b and C both being determined by drawing a line parallel to the distribution through the pole (0.25 pm, 50%). 

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