Which of the following is a correctly reported confidence interval? (3.782 +/- 0.02) s O (4 +/- 0.1) s (3.782 +/- 0.002) s O (5.27 +/- 0.23) s

Do random errors contribute to % error and/or standard deviation? Why?   (Please correct answer)

A good-quality measuring tape can be off by 0.58 cm over a distance of 23 m.What is its percent uncertainty?

Please answer this, I need help.

The tolerance is ± 1 in the 3rd significant digit.

Based on a survey of a random sample of 900 adults in the United States, a journalist reports that 60 perc adults in the United States are in favor of increasing the minimum hourly wage. If the reported percent ha margin of error of 2.7 percentage points, which of the following is closest to the level of confidence?

What is the difference between accuracy and precision? Explain 2. Calculate the volume and percent error/uncertainty in the volume of a rectangular sample block of length 13.51 ±0.05 cm, width 6.23 ±0.02 cm, and thickness of 1.76±0.02 cm. 3. Calculate the mass density and uncertainty in the mass density of the sample block. Mass of the block is 289± 1gr. 1.

Apply error propagation to determine the associated uncertainty in the average volume… Plz

A marathon runner completes a 42.188-km course in 2 h, 35 min, and 39 s. There is an uncertainty of 28 m in the distance traveled and an uncertainty of 1 s in the elapsed time. (Give all answers to the appropriate number of significant figures. Note that uncertainties should be reported to one significant figure and percent uncertainties should be reported to two significant figures.) (a) Calculate the percent uncertainty in the distance. _________% (b) Calculate the percent uncertainty in the elapsed time. __________%

A series of four measurements of g are made in the physics lab. The results of these measurements in ms2/ are: 9.63, 9.58, 9.71, 9.68. The average of these four measurements is the experimental value of g and the accepted value is 9.80 ms2/. What is the percent error of these measurements?