Answer: 84.5%
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Work Shown:
A = area of the smaller square
A = (5.98)^2
A = 35.7604 square cm which is exact
B = area of the larger square
B = (15.2)^2
B = 231.04 square cm which is exact
C = the chances of landing in the smaller square
C = A/B
C = 35.7604/231.04
C = 0.15478012465373 which is approximate
C = 0.154780
D = the chances of landing in the blue region
D = 1 - C
D = 1 - 0.154780
D = 0.84522
D = 84.522%
D = 84.5%