In teachingApps: Apps for Teaching Statistics, R Programming, and Shiny App Development

The normal, lognormal, and Weibull distributions

• Each of these distributions have two parameters

• Analytic solutions for find MLE's do not exist for all two-parameter distributions

• Graphical approaches for two-parameter distributions result in three dimensional likelihood surfaces - can be difficult to interpret

• Numerical techniques are preferred and are often required to find the MLE's for distributions with 2 or more unknown parameters

• The shiny app below shows the likelihood surfaces and the numerical solutions for each of these three distributions

teachingApps documentation built on July 1, 2020, 5:58 p.m.