indispensable [Adjective] + knowledge [Noun]

Strength Strength Dispersion
A:
6
CHISQ:
47.89
AWT:
12,810,470
TTEST:
2.2
G2:
21.46
FAWT:
4.24
MI:
3.3
LOGLOG:
8.54
JD:
0.6
MI3:
8.47
DICE:
0.08
RANGE: