what is the d20 face up in r when do you face up a dice what is the effect of face-up value in math what is r's effect on p values? how to test for the effect of the face value on a dice which face-up value has the best bias? can you check the face up on dice what does face-up value mean? what is the effect of the dice face up value how to test for positive positive bias in r what is the effect of face up in r when to use face up value for d20 what is face up value in r how many dice to test in r how to test when dice face up what is the effect of the face-up how to test r on d20 what does the face up value of a dice do what makes a dice face up higher effects of face up in r