I've calculated some more probabilities of attacks hitting/missing of 80, 85, 90 and 95% accuracy attacks hitting or missing over 10 turns.
80%:
X~B(10,0.8)
Hit 0/10 -> P(X=0)=(0.2)^10 = 0.0000001024
Hit 5/10 -> P(X=5)=(10C5)(0.8)^5(0.2)^5 = 0.02642411152
Hit 10/10 ->P(X=10) (0.8)^10 =...