$ResultsArray=@()
0..55 | % {$ResultsArray+=0}
$die=@(0,1,2,2,2,3)
$runningtotal=0
$minimum=25
$maximum=0
$trials=1000000
for ($i=1;$i -le $trials;$i++) {
    $DieRolls=0
    $GameTotal=0
    while ($GameTotal -lt 15) {

        $GameTotal=$GameTotal+($die| Get-Random)
        $DieRolls=$DieRolls+1
        }
    if ($DieRolls -lt $minimum) {$minimum=$DieRolls}
    if ($DieRolls -gt $maximum) {$maximum=$DieRolls}
    $ResultsArray[$DieRolls]+=1
    $runningtotal=$runningtotal+$DieRolls
}

$average=$runningtotal/$trials

"Trials: $trials"
"Average: $Average"
"Minimum: $minimum"
"Maximum: $Maximum"
"Number, Times Rolled, Percentage, Accumulated Percentage"

$accumulator=0

for ($i=1;$i -lt ($ResultsArray.Length);$i++) {
    If ($ResultsArray[$i] -ne 0) {
        $accumulator=$accumulator+$ResultsArray[$i]
        $acumpercent=$accumulator/$trials
        $percent=$ResultsArray[$i]/$trials
        "{0}, {1}, {2:P4}, {3:P4}" -f $i,$ResultsArray[$i],$percent, $acumpercent
    }
}