Independent exponential random variables
Let X and Y be independent exponential random variables with means 2 and 3 respectively. Let Z=X+Y. Determine P(2<=Z<=6)
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Design a pump that delivers 200 liters/min at a pressure of 120 bar. The given data (discharge and pressure) can fit with several pump-type alternatives.
Suppose that the skewness associated with the residuals from a multiple regression of 88 observations is -0.3 and the excess kurtosis is
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he laser in most supermarket barcode scanners operates at awavelength of 632.8 nm. What is the energy of a single photonemitted by such a laser? What is the energy of one mole of these photons?
A ball is thrown with a velocity of 20 m/s @ 60o from the x-axis. The ball lands at the same height as it was thrown. (a=-9.8 m/s2 ) Using the previous information what are the parallel and perpendicular components of the acceleration?
Obtain the sample mean and the sample standard deviation of each of the three samples.Obtain total sum of squares (SST,)treatment sum of squares (SSTR,)and error sum of squares (SSE)by using the defining formulas and verify that the one-way ANOVA
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The overall volume compression ratio of a reversed carnot cycle working with air as a refrigerant is 10. The temperature limits of the cycle are 40 defree C. determine: the pressure, volume and temperature at each point of the cycle.
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