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Q) Write a computer program that generates a sequence of random variables from a normal distribution with mean 5 and standard deviation 2.
a) Verify that sample mean and the sample variance converge to the respective population values.
b)Verify that the third central moment is zero.
An intake conduit from a well field used to pump ground water is being designed for a town with a population of 23,000 people. Six years ago the population was 21,500 people. a) assuming deometric growth, calculate the population in 50 years
Vehicles arrive at a toll bridge at a rate of 430 veh/hr (the time between arrivals is exponentially distributed) Two toll booths are open and each can process arrivals (collect tolls) at a mean rate of 10 seconds per vehicle
chromate waste is concentrated by evaporation in a series of shallow flow through reactor tanks connected by a short
A steel bar is attached to a wood support beam with four 20 mm diameter lag screws. The steel bar is 75-mm-wide by 6-mm-thick. For the steel bar, the yield strength is 260 MPa and the ultimate bearing strength is 350 MPa.
An intersection approach volume is 1,500 veh/h and includes 12% left turns with a through-vehicle equivalent of 2.3 tvu's/left turn. What is the total equivalent through volume on the approach
A water treatment plant is being designed to process 50,000 m3/d of water. Jar testing and pilot-plant analysis indicate that an alum dosage of 40 mg/L with flocculation at a Gt value of 4.0 × 10^4 produce optimal results at expected water temperatur..
A trapezoid has a bottom width of b, and top width of T, a heightof h, and side slopes of z(horizontal to vertical). By integration, determine the location of the centroid of thetrapezoid Define your coordinate system.
A traffic signal control is being designed for a four-leg intersection on a divided highway with the characteristics shown in the table below. Determine an appropriate length of the yellow interval for each approach and how you will provide it.
Calculate the X, Y and Z coordinates of point B for radial readings taken to B from occupied station A, if the backsight azimuth at A is 25°32'48", the elevation of A = 610.098 m, and hi = 1.45 m
Given an aluminum simply supported beam with overhang, determine the applied load at the free end with a max deflection of 1". b= 1" h= 0.25" L=12" l= 24" E= 10,000 ksi
Perfrom a life cycles savings analysis - calculate thenumber Of projects that must be undertaken each year to justify Alternative a. The laborfor alternate ais $14.00 per hour.
A simple curve has a central angle of 42degreess. A point Y is located 24m from the vertex and has a perpendicular distance of 3.00m from the back tangent.
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