Question

s Question Completion Status Consider a group of students who conduct the same projectile lab you completed for Lab 04. They find the trajectory range and, following standard laboratory practices, assumed that this is one standard deviation ơ They use this value to draw the bands on their target. After their initial launch, they record a number of additional launches to verify their estimate of ơ Of the following choices, what is the best interpretation if after 40 launches the group's carbon paper looked like the following? (The middle blue line is the prediction, the outer lines indicate the range of uncertainty.) https./canopy.uc.edu/webapps/assessment/lake/aunchjpplcoure avesument d Ce e saTsconte 3 e Question Completion Status: oThe uncertainty was estimated correctly. o The uncertainty was overestimated O There is a systematic error here. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All AnswersCo O Type here to search There is a systematic error here. O The uncertainty was underestimated.

Answer 1

Sol:

The rectangle defined by the two outer blue lines should enclose approximately 68% of the data, which means there should be approximately 32% of 40 (12 or 13) hits outside the lines. Only 4 events fall outside the estimate, so the uncertainty was overestimated. There is no systematic uncertainty here because the data and the circle are centered on the same position.