Describe possible sources of random and systematic errors in the following measurement.

Speeds of cars recorded by a police officer using a radar gun.

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Part 1

Which of the following would be random errors in this situation? Select all that apply.

A.

Errors in the speedometers of the cars observed.

B.

Errors made by the police officer in reading the radar gun.

C.

Errors made when calibrating the radar gun.

D.

Errors made by the police force when choosing which officer to check the speeds.

E.

Errors made by the police officer in recording the speeds.

F.

Errors made by using a radar gun that is incorrectly calibrated and consistently reads high or low.

Part 2

Which of the following would be systematic errors in this situation? Select all that apply.

A.

Errors made by the police force in using a radar gun that is known to be malfunctioning.

B.

Errors in the speedometers of the cars observed.

C.

Errors made by the police force when choosing which officer to check the speeds.

D.

Errors made by an officer known to consistently read the radar gun output higher than the actual value displayed.

E.

Errors occurring when analyzing the speeds.

F.

Errors caused by the different makes and models of the cars observed.

Select all that apply.Select all that apply.