Probability 

After shooting 16 arrows probability of hitting the target at least once= 15/16

i.e. probability of hitting none = 1 – 15/16 = 1/16

probability of not hitting the target in one arrow = (1/16)^1/16

probability of not hitting the target in 8 arrows = ((1/16)^1/16)⁸ = (1/16)^0.5 = 1/4

Hence, probability of hitting the target at least once after shooting 8 arrows = 1 – 1/4 =3/4(3)