Recently I watched this Youtube video ( The Monty Hall Problem )

“Put simply: If you pick a goat then swap you will always win the car. And you have a 2/3 probability of picking a goat.”

I was so amazed by this logic and static thinking problem.

I use PowerShell to write this The Monty Hall Problem prove program and as yo can see from the program result screenshot,

there is very high chance you get a car when you swap your answer.

just for fun and for practice ðŸ™‚

PS C:\Users\chako> $PSVersionTable.PSVersion Major Minor Build Revision ----- ----- ----- -------- 5 1 14393 1532

Powershell script:

################################################################## # # The Monty Hall Problem # Youtube : https://www.youtube.com/watch?v=mhlc7peGlGg # # Raymond Liu # # # 2017 / 09 / 13 v1 # ################# Settings ################################ $getCar = 100 $Goat = 0 try { for ($q=1; $q -le 10; $q++) { for ($i=1; $i -le 10; $i++) { # the PowerShell cmdlet generates random numbers you must always set the Maximum value # to one number beyond your desired limt to fit within the accepted range $TempA = Get-Random -Maximum 4 -Minimum 1 $TempB = Get-Random -Maximum 4 -Minimum 1 if ($TempA -eq $TempB) { $check = "X" $getCar-- } else { $check = "O" } Write-Host(" " + $check + " ") -ForegroundColor Red -NoNewline } Write-Host(" "); } $Goat = 100 - $getCar Write-Host(" `n") Write-Host("Car: " + $getCar + "%`n") -ForegroundColor Yellow Write-Host("Goat: " + $Goat + "%`n`n") -ForegroundColor Yellow } catch { Write-Host("`n[ERROR] Something Wrong. `n") -ForegroundColor Red Exit 1 }

ðŸ™‚

ðŸ™‚

Powershell script with recursive:

################################################################## # # The Monty Hall Problem # Youtube : https://www.youtube.com/watch?v=mhlc7peGlGg # # Raymond Liu # # # 2017 / 09 / 14 v2 recursive # ################# Settings ################################ $global:getCar = 100 $global:Goat = 0 $count = 10 $recursivecount = 1 try { Function recursive{ $count-- If($count -ge 0){ # the PowerShell cmdlet generates random numbers you must always set the Maximum value # to one number beyond your desired limt to fit within the accepted range $TempA = Get-Random -Maximum 4 -Minimum 1 $TempB = Get-Random -Maximum 4 -Minimum 1 if ($TempA -eq $TempB) { $check = "X" $global:getCar -- #Write-Host("Car: " + $getCar + "%`n") -ForegroundColor Yellow } else { $check = "O" } Write-Host(" " + $check + " ") -ForegroundColor Red -NoNewline if ($count -eq 0 -and $recursivecount -lt 10) { $count = 10 $recursivecount++ Write-Host(" "); } recursive } } recursive $Goat = 100 - $getCar Write-Host(" `n") Write-Host("Car: " + $getCar + "%`n") -ForegroundColor Yellow Write-Host("Goat: " + $Goat + "%`n`n") -ForegroundColor Yellow } catch { Write-Host("`n[ERROR] Something Wrong. `n") -ForegroundColor Red Exit 1 }