Problem: The three targets from a rifle range shown below were produced by: (A) the instructor firing a newly acquired target rifle; (B) the instructor firing his personal target rifle; and (C) a student who has fired his target rifle only a few times. For the A and C results in the future to look like the B results, what needs to happen? Select all that apply. 1)To improve accuracy for the result A, the sighting mechanism on the gun should be adjusted down and slightly left from its current position.2)To improve accuracy for the result C, the sighting mechanism on the gun should be adjusted slightly right from its current position. After adjusting the sight, the student needs more practice to improve precision.3)To improve the results on A, someone who can produce a precise grouping must shoot the target rifle and then the position of the sighting mechanism can be adjusted.4)To improve the results on A, the instructor needs more practice.5)To improve the results on C, someone who can produce a precise grouping must shoot the target rifle and then the position of the sighting mechanism can be adjusted. After adjusting the sight, the student needs more practice to improve precision.6)To improve accuracy for the result C, the sighting mechanism on the gun should be adjusted slightly left from its current position. After adjusting the sight, the student needs more practice to improve precision.7)To improve accuracy for the result A, the sighting mechanism on the gun should be adjusted up and slightly right from its current position. 8)To improve the results on C, someone who can produce a precise grouping must teach the student how to use a gun.

🤓 Based on our data, we think this question is relevant for Professor Stec's class at UIC.

FREE Expert Solution

Recall that:

• Accuracy refers to how close the measurement is to the ‘true/actual value’.

• Precision refers to how close the measurements are to each other.


Results for A, B, C show:

  • A: Low accuracy, High precision 
  • B: High accuracy, High precision
  • C: Low accuracy, Low precision 
    • some are near the target


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Problem Details

The three targets from a rifle range shown below were produced by: (A) the instructor firing a newly acquired target rifle; (B) the instructor firing his personal target rifle; and (C) a student who has fired his target rifle only a few times. 

The figure shows three targets from a rifle range labeled from (a) to (c). In target (a), all bullet holes are located at the top right part closely to each other. In target (b), all bullet holes are located at the center of the target closely to each other. In target (c), bullet holes are scattered randomly with a great distance between the holes.

For the A and C results in the future to look like the B results, what needs to happen? Select all that apply. 

1)To improve accuracy for the result A, the sighting mechanism on the gun should be adjusted down and slightly left from its current position.

2)To improve accuracy for the result C, the sighting mechanism on the gun should be adjusted slightly right from its current position. After adjusting the sight, the student needs more practice to improve precision.

3)To improve the results on A, someone who can produce a precise grouping must shoot the target rifle and then the position of the sighting mechanism can be adjusted.

4)To improve the results on A, the instructor needs more practice.

5)To improve the results on C, someone who can produce a precise grouping must shoot the target rifle and then the position of the sighting mechanism can be adjusted. After adjusting the sight, the student needs more practice to improve precision.

6)To improve accuracy for the result C, the sighting mechanism on the gun should be adjusted slightly left from its current position. After adjusting the sight, the student needs more practice to improve precision.

7)To improve accuracy for the result A, the sighting mechanism on the gun should be adjusted up and slightly right from its current position. 

8)To improve the results on C, someone who can produce a precise grouping must teach the student how to use a gun.

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Based on our data, we think this problem is relevant for Professor Stec's class at UIC.