Recognised as Dice notation
2d227
- 2d227
- 2 to 454
- mean 228
- mode 228
Rolling 2d227 gives a total between 2 and 454, with a mean of 228 and a standard deviation of 92.6715. There are 51,529 equally likely ordered outcomes, and the most likely total is 228 at 0.441%.
The roll
Notation2d227
Dice2
Faces per die227
Minimum total2all 2 dice showing 1
Maximum total454all 2 dice showing 227
Distinct totals453
Mean228n(f + 1)/2 + modifier, exact
Variance8,588n(f² − 1)/12, exact
Standard deviation92.67146271≈
Counting the outcomes
Ordered outcomes51,529227^2, every die distinguishable
Most likely total228
Chance of that total0.440529%≈
Ways to roll it227exact count
Chance of the minimum0.00194065%≈1 in 51,529
Chance of the maximum0.00194065%≈1 in 51,529
Shape of the distribution
453 distinct totals, too many to list individually.
1st percentile33≈1.025% of rolls are this or lower
5th percentile73≈5.1% of rolls are this or lower
25th percentile162≈25.308% of rolls are this or lower
50th percentile228≈50.22% of rolls are this or lower
75th percentile294≈75.004% of rolls are this or lower
95th percentile383≈95.04% of rolls are this or lower
99th percentile423≈99.037% of rolls are this or lower
Chance of rolling at least
4797.9914%≈
11587.5002%≈
22850.2203%≈
34112.721%≈
4092.0978%≈
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