Question

2. Perform the indicated operations to the correct number of significant figures using the figures rules for a. 37.60 x 1.23 b. 6.7/8.9752 c. 3.765+1.2+37.21 To get credit, specify the rule you used to round your results. Three students make measurements (in m) of the length of a rod using a meter stick. Each student's mode calculate the mean L, standard deviation S and uncertainty u of the measurements. 3. are tabulated in the table below. Using your calculator in statistic Li L3 L4 SD 14717 14711 14722 1.4715 4749 1.4759 4756 ー ー Student 3 14719 14723 1.4705 14719 Note that the actual length of the rod is determined by a laser measurement technique to be 14715 m (this should be considered the standard value). a) State how one determines the accuracy of a measurement. Apply your idea to the measurements of the three students above and state which student has the most

Answer 1

a

24ns: 0 37.60 xl-23 ana we have 3o, we have lo 6.7(2)8. 75 ()6,7465 1310.15 12) 8.975 For Addilion least precse