---
title: "04-05 Worksheet. Crash Course in Statistics (Summer 2025)"
subtitle: "Neuroscience Center Zurich, University of Zurich"
author: "Zofia Baranczuk"
date: "2025-08-25"
output: pdf_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

  
## 1. GDP and depression.
04:
We will work with GDP, country and depression data as in 02_DataSets and 04_DataWrangling.
Load GDP, country, and depression data.
Merge the data so that you can do the following:
- compute median, mean, min, max depression per region and the number of countries per region. 
05:
- plot GDP vs. depression using different colors for different regions for one selected year. You can choose any indicator about the depression.
- Check if some countries are dropped due to missing depression or GDP for the chosen year.
- What other plots could be a good visualization for the data? Add these plots. 

```{r}

```