rewarding [Adjective] + challenge [Noun]

Strength Strength Dispersion
A:
3
CHISQ:
9.13
AWT:
38,323,207
TTEST:
1.37
G2:
8.14
FAWT:
1.42
MI:
2.27
LOGLOG:
3.6
JD:
0.25
MI3:
5.44
DICE:
0.09
RANGE: