Cumulative distribution functions.

<p>(<b>a</b>) Plot of empirical cumulative distribution function (experimental data) for time interval 2, channel 1 () together with theoretical cumulative distribution function plots for normal and lognormal distributions. (<b>b</b>) Plot of empirical cumulative distribution function for time interval 11, channel 3 (). In both cases the confidence interval for experimental data is computed at p-value of 0.05.