The circular probable error (CPE) is a measure of accuracy for a shooting system of a toy rifle at the target on the (x, y) plane. A boy shoots at the target on the (x, y) plane. The actual point in which the shooting hits the target on the (x, y) plane is assumed to follow a bivariate normal distribution with the means x = y = 0, standard deviations Ox=oy=σ and correlation coefficient p= 0. The CPE of the boy is defined as the radius of a circle centred at (0, 0) with a probability 0.5 to encompass (X, Y), i.e., the point where the shooting hits the target. If r = CPE, then Pr(√X² +Y² ≤r)=0.5. Derive a formula for r in terms of o.

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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1.
The circular probable error (CPE) is a measure of accuracy for a shooting system of a
toy rifle at the target on the (x, y) plane. A boy shoots at the target on the (x, y) plane.
The actual point in which the shooting hits the target on the (x, y) plane is assumed to
follow a bivariate normal distribution with the means x = y = 0, standard deviations
Ox=oy=σ and correlation coefficient p = 0. The CPE of the boy is defined as the
radius of a circle centred at (0, 0) with a probability 0.5 to encompass (X, Y), i.e., the
point where the shooting hits the target. If r = CPE, then Pr(√X² +Y² ≤r)=0.5.
Derive a formula for r in terms of σ.
Transcribed Image Text:1. The circular probable error (CPE) is a measure of accuracy for a shooting system of a toy rifle at the target on the (x, y) plane. A boy shoots at the target on the (x, y) plane. The actual point in which the shooting hits the target on the (x, y) plane is assumed to follow a bivariate normal distribution with the means x = y = 0, standard deviations Ox=oy=σ and correlation coefficient p = 0. The CPE of the boy is defined as the radius of a circle centred at (0, 0) with a probability 0.5 to encompass (X, Y), i.e., the point where the shooting hits the target. If r = CPE, then Pr(√X² +Y² ≤r)=0.5. Derive a formula for r in terms of σ.
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