Recognised as Dice notation
2d670
- 2d670
- 2 to 1340
- mean 671
- mode 671
Rolling 2d670 gives a total between 2 and 1,340, with a mean of 671 and a standard deviation of 273.526. There are 448,900 equally likely ordered outcomes, and the most likely total is 671 at 0.149%.
The roll
Notation2d670
Dice2
Faces per die670
Minimum total2all 2 dice showing 1
Maximum total1,340all 2 dice showing 670
Distinct totals1,339
Mean671n(f + 1)/2 + modifier, exact
Variance74,816.5n(f² − 1)/12, exact
Standard deviation273.52604995≈
Counting the outcomes
Ordered outcomes448,900670^2, every die distinguishable
Most likely total671
Chance of that total0.149254%≈
Ways to roll it670exact count
Chance of the minimum0.00022277%≈1 in 448,900
Chance of the maximum0.00022277%≈1 in 448,900
Shape of the distribution
1,339 distinct totals, too many to list individually.
1st percentile96≈1.016% of rolls are this or lower
5th percentile213≈5.03% of rolls are this or lower
25th percentile475≈25.078% of rolls are this or lower
50th percentile671≈50.075% of rolls are this or lower
75th percentile867≈75.028% of rolls are this or lower
95th percentile1,129≈95.018% of rolls are this or lower
99th percentile1,246≈99.005% of rolls are this or lower
Chance of rolling at least
13697.9851%≈
33787.4627%≈
67150.0746%≈
1,00612.5373%≈
1,2062.045%≈
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