A line's length has been measured repeatedly on different occasions. The following are the results obtained: 1) 1st measurement record = 352.33 ± 0.03cm 2nd measurement record = 351.79 ± 0.07cm 3rd measurement record = 352.16 ± 0.08cm 4th measurement record = 352.84 ± 0.01cm 5th measurement record = 351.55 t 0.04cm Determine the weighted mean of the 5 sets of measurements. Given the computed weighted mean of the measurements, what is the relative precision if the true length of the line is 352.39cm.
A line's length has been measured repeatedly on different occasions. The following are the results obtained: 1) 1st measurement record = 352.33 ± 0.03cm 2nd measurement record = 351.79 ± 0.07cm 3rd measurement record = 352.16 ± 0.08cm 4th measurement record = 352.84 ± 0.01cm 5th measurement record = 351.55 t 0.04cm Determine the weighted mean of the 5 sets of measurements. Given the computed weighted mean of the measurements, what is the relative precision if the true length of the line is 352.39cm.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A line's length has been measured repeatedly on different
occasions. The following are the results obtained:
1)
1st measurement record = 352.33 ± 0.03cm
2nd measurement record =
351.79 + 0.07cm
3rd measurement record = 352.16 ± 0.08cm
4th measurement record = 352.84 ± 0.01cm
5th measurement record = 351.55 ± 0.04cm
Determine the weighted mean of the 5 sets of measurements.
Given the computed weighted mean of the measurements, what is the relative
precision if the true length of the line is 352.39cm.
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