improved materials

material/1_mon/firststeps/statistic_functions.jl

@@ -1,8 +1,9 @@
 #---
+using ProgressMeter
 
 function rse_sum(x)
     s = 0
-    for k = eachindex(x)
+    @showprogress for k = eachindex(x)
         s = s+x[k]
     end
     return s

material/1_mon/firststeps/tasks.qmd

@@ -19,7 +19,18 @@ You can mark some code and execute it using `ctrl` + `enter` - you can also gene
 
 Well done! You now have all functions defined with which we will continue our journey.
 
+::: callout
+## Bonus Task ProgressMeter
+for very large sums we might want to add a progressmeter. To do so:
 
+```julia
+]add ProgressMeter
+using ProgressMeter
+...
+@showprogress for ...
+```
+
+And that's it! You should have a nice progress bar now
 # Task 2 {#2}
 
 1. Implement a type `StatResult` with fields for `x`, `n`, `std` and `tvalue`