If the rolls don't seem quite right, check them! Fair Game: the
Dice Checker calculates the probability of the individual rolls
of a die or dice and the mean and standard deviation for all the
rolls. With these values, you can determine if the dice that
you're using are fair.
Dice included: four-sided (D4), six-sided (D6), two six-sided
(D6 x 2), eight-sided (D8), ten-sided (D10), twelve-side (D12)
and twenty-sided (D20).