CIVE 302 Study Guide - Quiz Guide: Abundant Number, Vehicle, Standard Deviation

50 views1 pages

Document Summary

Due date: 2. 00 pm on february 03, 2014. A class with 10 students comprising men and women. Suppose a random sample of 5 students are selected. Find the probability of exactly 3 students being men. (1 point) The mean and standard deviation of the compressive strengths of 40 concrete cubes from a particular mix are given as 60. 14 and 5. 02 . A proposed bridge across a stream is supported at the two ends and on a center pier. Although the design allows for relative settlements of the foundations, the engineer needs to keep these within limits. Settlements caused by the sum of numerous dead loads and impacts of moving vehicles may be assumed to be normally distributed, with the variability arising from the effects on the soil by the foundations. Assume that the two adjacent foundations on the banks of the stream are stabilized so that their settlements are negligible.