Assignment No 5

# Assignment No 5 - The standard deviation of the weighted...

This preview shows pages 1–4. Sign up to view the full content.

SUR 3520: Measurement Science Spring 2008 – Section 4218 Assignment No. 5 Student UFID: Student Name: 5.1 An angle was measured at four different times as follows: 136°14 34 ±12.2 ”, 136°14 36 ±6.7 ”, 136°14 28 ±8.9 ”, and 136°14 26 ±9.5 ”, respectively . What is the most probable value for the angle and the standard deviation of the weighted mean? 5.2 A distance was measured by pacing as 267 ft with a standard deviation of ±3 ft. It was then measured as 268.94 ft with a steel tape and had a standard deviation of ±0.05 ft. Finally, it was measured as 268.99 ft with an EDM. The EDM instrument and reflector setup standard deviations were ±0.005 ft and ±0.01 ft, respectively, and the manufacturer's estimated standard deviation for the EDM instrument is 3 mm + 3 ppm. Compute the following: a. The most probable value for the distance b.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The standard deviation of the weighted mean c. The standard deviation for unit weight d. The standard deviation for each weighted observation. 5.3 Three crews level to a benchmark following three different routes. The lengths of the routes and the observed differences in elevation are What is the a. Best value for the difference in elevation? b. Standard deviation of the mean for the elevation difference? c. Standard deviation of unit weight? d. Standard deviation for the weighted observations? University of Florida Geomatics – SFRC SUR 3520: Measurement Science Spring 2008 – Section 4218 University of Florida Geomatics – SFRC SUR 3520: Measurement Science Spring 2008 – Section 4218 University of Florida Geomatics – SFRC SUR 3520: Measurement Science Spring 2008 – Section 4218 University of Florida Geomatics – SFRC...
View Full Document

## This homework help was uploaded on 04/17/2008 for the course SUR 3520 taught by Professor Mohammed during the Spring '08 term at University of Florida.

### Page1 / 4

Assignment No 5 - The standard deviation of the weighted...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online