Roll a D8 die and a D100 die

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20 4 6 8 10 12 48 100

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D8 + D100 Dice Roller

D8 + D100 Dice Roller
Rolls a D8 die and a D100 die
Lets you roll multiple dice like 2 D8s, or 3 D8s. Add, remove or set numbers of dice to roll
Combine with other types of dice (like D6 and D10) to throw and make a custom dice roll
Roll the dice multiple times. You can choose to see only the last roll of dice
Display sum/total of the dice thrown. You can choose to see totals only

Statistics of this Dice Roller

RollD8 + D100
Total Kinds of Dice2
Total Dice2
Minimum Sum2
Maximum Sum108
Lowest Dice Face1
Highest Dice Face100
Highest Dice Face of the Smallest Die8

Probabilities of this Dice Roller

D8 + D100

Probability of getting a 1

In technical terms this is equivalent of getting atleast one 1. This is close to 0.13, about 13.38% percent.

This is calculated by multiplying all the probabilities of not getting a 1 for each dice and then subtracting the answer from 1.

1 - (7/8 x 99/100)

Probability of not getting a 1

Probability of not getting any 1 is close to 0.87, about 86.63% percent.

This is calculated by multiplying all the probabilities of not getting a 1 for each dice.

7/8 x 99/100

Probability of getting all 1's

Probability of getting all 1's is close to 0.0013, about 0.12% percent.

This is calculated by multiplying together all the probabilities of getting a 1 for each dice.

1/8 x 1/100

Probability of getting 2 1s

Probability of getting 2 1's is close to 0.0013, about 0.12% percent.

This is calculated by multiplying together all the probabilities of getting a 1 for each dice that has a 1.

1/8 x 1/100

Probability of getting a 8

In technical terms this is equivalent of getting atleast one 8. This is close to 0.13, about 13.38% percent.

This is calculated by multiplying all the probabilities of not getting a 8 for each dice and then subtracting the answer from 1.

1 - (7/8 x 99/100)

Probability of not getting a 8

Probability of not getting any 8 is close to 0.87, about 86.63% percent.

This is calculated by multiplying all the probabilities of not getting a 8 for each dice.

7/8 x 99/100

Probability of getting all 8's

Probability of getting all 8's is close to 0.0013, about 0.12% percent.

This is calculated by multiplying together all the probabilities of getting a 8 for each dice.

1/8 x 1/100

Probability of getting 2 8s

Probability of getting 2 8's is close to 0.0013, about 0.12% percent.

This is calculated by multiplying together all the probabilities of getting a 8 for each dice that has a 8.

1/8 x 1/100

Probability of getting a 9

In technical terms this is equivalent of getting atleast one 9. This is close to 0.01, about 1% percent.

This is calculated by multiplying all the probabilities of not getting a 9 for each dice and then subtracting the answer from 1.

1 - (8/8 x 99/100)

Probability of not getting a 9

Probability of not getting any 9 is close to 0.99, about 99% percent.

This is calculated by multiplying all the probabilities of not getting a 9 for each dice.

8/8 x 99/100

Probability of getting all 9's

Probability of getting all 9's is close to 0., about 0.% percent.

This is calculated by multiplying together all the probabilities of getting a 9 for each dice.

0/8 x 1/100

Probability of getting 1 9s

Probability of getting 1 9's is close to 0.01, about 1% percent.

This is calculated by multiplying together all the probabilities of getting a 9 for each dice that has a 9.

1/100

Probability of getting a 100

In technical terms this is equivalent of getting atleast one 100. This is close to 0.01, about 1% percent.

This is calculated by multiplying all the probabilities of not getting a 100 for each dice and then subtracting the answer from 1.

1 - (8/8 x 99/100)

Probability of not getting a 100

Probability of not getting any 100 is close to 0.99, about 99% percent.

This is calculated by multiplying all the probabilities of not getting a 100 for each dice.

8/8 x 99/100

Probability of getting all 100's

Probability of getting all 100's is close to 0., about 0.% percent.

This is calculated by multiplying together all the probabilities of getting a 100 for each dice.

0/8 x 1/100

Probability of getting 1 100s

Probability of getting 1 100's is close to 0.01, about 1% percent.

This is calculated by multiplying together all the probabilities of getting a 100 for each dice that has a 100.

1/100

Probability of getting all highest faces

Probability of getting all the maximum faces (a 8 and a 100) is close to 0.0013, about 0.12% percent.

This is calculated by multiplying together all the probabilities of getting the maximum face for each dice.

1/8 x 1/100

Probability of getting one of a kind

Probability of getting one of a kind is close to 0.01, about 1% percent.

There are 8 ways to get one of a kind (all 1's, all 2's, all 3's, all 4's, all 5's, all 6's, all 7's or all 8's). The probability of getting all of any kind is then caclulated by adding the probability of getting all 1's, all 2's, all 3's, all 4's, all 5's, all 6's, all 7's or all 8's. Since, probabilities of getting all 1's through all 8's are the same, we can multiply them all together. So, multiplying the probability of getting all 1's by 8 will give us the probability of getting all of any kind.

    
    8 x (1/8 x 1/100)

Javascript code to create this dice roller


    // code to create a D8 + D100 dice roller

    
    // define the sets of dice to use
    // 1 set for each kind of dice
    var dice_sets = [
                [1, 8], // 1d8        
                [1, 100], // 1d100        
            ];

    var this_roll = []; // array to store the results of this roll

    for (var ds = 0; ds < dice_sets.length; ds++) {

        //loop through each dice set

        // for each dice set, determine the numbers of dice, lowest and highest side of the dice

        var numbers_of_dice = dice_sets[ds][0];     // how many dice to roll 
        var lowest = 1;                             // lowest possible side of the dice
        var highest = dice_sets[ds][1];             // highest possible side of the dice          

        for (var j = 1; j <= numbers_of_dice; j++) {

            // loop for the number of dice

            // for each dice, generate a number between lowest and highest
            var dice_face = Math.floor(Math.random() * (highest-lowest+1) + lowest);
            this_roll.push(dice_face); //store this in the array
        }


    }            
        
    // print all the generated rolls
        
    for (j = 0; j < this_roll.length; j++) {

        // loop through the inner dice array 

        //print each dice roll value followed by a space
        document.write(this_roll[j]);
        document.write(" ");

    }

    
    

    /* 

    Sample output 

    

    */