ascertain [Verb] + difficulty [Noun]

Strength Strength Dispersion
A:
8
CHISQ:
56.67
AWT:
25,400,904
TTEST:
2.51
G2:
25.43
FAWT:
2.14
MI:
3.16
LOGLOG:
9.49
JD:
0.66
MI3:
9.16
DICE:
0.12
RANGE: