why use log normal distribution why use lognormal distributions why use log normal distribution what are log normal distributions used for for scale parameters? why use prior distributions what is a lognormal distribution why use log normal distributions what do you use log normal distribution for are lognormal distributions used for scale parameters why use log normal distribution why is log normal distribution a prior distribution why use log normal distribution what is log normal distribution when to use log normal distributions for t distributions when to use a lognormal distribution which distribution is used to measure a scale why use log normal distributions why use a log normal for scale parameter why use t and log normal distribution why use log normal distribution