Equipment Virtual Bull\'s Eye (2 sheets with Carbon paper in between) Procedure-
ID: 1572910 • Letter: E
Question
Equipment Virtual Bull's Eye (2 sheets with Carbon paper in between) Procedure-Part A 1) Imagine that you place the Bull's Eye on the floor, and then drop a small ball from a 2-meter height (say, extending your arm above your head), aiming at the center of the target. 2) The ball, hitting the carbon paper, will leave a mark on the bottom Bull's Eye sheet. 3) You repeat this for a total of 10 drops. Then you draw a circle around these marks using a red pen Procedure- PartB 4) You are now blindfolded and repeat the experiment being guided verbally by a friend. This time you draw a circle around the marks using a green pen. Results Shown below are the results of your experiment. Looking at the two sets of marks, you will be asked to figure out if your results are"precise, or ‘accurate, or ‘precise but not accurate, etc.Explanation / Answer
accuracy: the readings are accurate when the readings are matching with true value.
precise: the readings are precise if all the readings are closely matching . precision is independent of accuracy.
Q1.
results of part A are not accurate as the results are not matching bull’s eye which is the required target.
Q2.
results from part A are precise as readings are matching each other closely.
Q3.
results from part B are not accurate as the results are not matching bull’s eye which is the required target.
Q4.
results from part B are not precise as the readings are not matching each other closely.
Q5.
results from part A are precise i.e. they convey that the process involved is correct but offset requirement to match the required target is needed.
results from part B are neither accurate nor precise and hence need process improvement .
Q6. results can be precise but not accurate as precision is independent of accuracy.
precision is when results are closely matching each other and they need not be matching the target value.
Q7.
skill and technique influence both accuracy and precision.
to achieve the target i.e. hitting the bull’s eye , skill is needed.
to achieve precision i.e. to hit the target in multiple attempts , correct techniques are required.
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