Practical [Adjective] + difficulty [Noun]

Strength Strength Dispersion
A:
128
CHISQ:
568.43
AWT:
1,302,496
TTEST:
9.51
G2:
260.58
FAWT:
41.73
MI:
2.65
LOGLOG:
18.53
JD:
0.87
MI3:
16.65
DICE:
1.26
RANGE: