The purpose of this presentation is to explain the operation of the app "Two normal distributions". This app was deployed on Rstudio's shiny server: https://fgarcial.shinyapps.io/Simulation/.

You can find the code in the following links:
ui.R: https://github.com/fgarciale/assigment/blob/master/ui.R
server.R: https://github.com/fgarciale/assigment/blob/master/server.R

1. Indicate the mean and standard deviation of distributions 1 and 2, using the sliders.
   
2. Select the operation. Sum or Product.

• The app will show you the first two distributions with the parameters you provided and a third distribution with the result.

Example (result and code on next page)
* the means of the first and second distributions are 420 and 10.
* the standard deviations of the first and second distributions are 50 and 40.
* the number (n) of simulated values is 10000.
* the chosen operation is "Sum".
* the app shows the following distribution as a result.

n<-10000
first<-rnorm(10000, mean = 420, sd = 50)
second<-rnorm(10000, mean = 10, sd = 40)
hist(first+second)