Percentage error ﹩{\rm{Err}}({\hat{\sigma }}_{{\rm{turb}}})[ \% ]﹩ on the analytical standard deviation ﹩{\hat{\sigma }}_{{\rm{turb}}}﹩ of the turbulent dephasing distribution with respect to the numerical standard deviation ﹩{\tilde{\sigma }}_{{\rm{turb}}}﹩ estimated from 20,000 realizations. We show errors only for ﹩{N}_{{\rm{\max }}}=100﹩ and f_Edd = 1, vary ﹩{ \mathcal C }\in \{1,10,100\}﹩ and have a coarse 5 × 5 grid for each {α, h₀} panel. The figure shows that ﹩{\rm{Err}}({\hat{\sigma }}_{{\rm{turb}}})[ \% ]\sim 10﹩ across the parameter space.