We have that the Percentage error is
[tex]P.E=4.52\%[/tex]
From the Question we are told that
Sample size n=1000
Nine (9) target
width=45.0 cm
diameter d=1.48
Generally the equation for Probability of collision  is mathematically given as
[tex]P=\frac{2Dn}{w}\\\\P=\frac{2*1.48*9}{45}\\\\P=0.592[/tex]
Where
[tex]P=\frac{h}{s}\\\\0.592=h/1000\\\\h=592[/tex]
Percent Error
[tex]P.E=\frac{1.55-1.48}{1.48}*100[/tex]
[tex]P.E=4.52\%[/tex]
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