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All posts related to Measurement

Varun
Shared from Measurement - 1 on Aug 17, 2014 9:53 AM

The volume of a cylinder is computed from measurements of its height (h) and diameter (d). A set of several measurements of height has an average value of 0.2 m and a standard deviation of 1%. The average value obtained for the diameter is 0.1 m and the standard deviation is 1%. Assuming that the errors in the measurements of height and diameter are uncorrelated, the standard deviation of the computed volume is

 
1.00%
1.73%
2.23%
2.41%
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Conclude it

Reshmi
Shared from Measurement - 1 on Jan 18, 2014 12:39 AM

The diameters of 10.000 balls bearings were measured. The mean diameter and standard deviation were found to be 10 mm and 0.05 mm, respectively. Assuming Gaussian distribution of measurements, it can be expected that the number of measurements more than 10.15 mm will be

 
230
115
15
2
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