2. Suppose you purchase a rifle, take it to the local firing range, and take 10

Question

2. Suppose you purchase a rifle, take it to the local firing range, and take 10 shots at a target. The results would fall into one of 4 categories (Figure 1). Match them to the different combinations of measurement error presented in Figure 4-2-2 of the reading assignment. Figure 1. Results from firing new rifle at the local firing rane. a. Which case demonstrates large systematic error and small random error? b, which case demonstrates negligible systematic error and large random error? c. Which case demonstrates large systematic error and large random error? d. Which case demonstrates negligible systematic error and small random error? 3. Let's continue with the previous scenario. Suppose you purchase a rifle, take it to the local firing range, and take 10 shots at a target. a. Give an example of some kind of extraneous variable that might case a systematic error in the target results. b. Also give an example of some kind of extrancous variable that might case a random error in the target results.

Explanation / Answer

Large systematic small random - D

Negligible systematic and large random-B

Large systematic and large random- C

Negligible systematic and small random- A

3a- extra envious variable causing systematic error- defect in the rifle, user not trained, not know how to handle rifle.

3b- variable causing random error-air velocity, environmental comditions

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