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Suppose an expert hypothesizes that the probability of a rainfall event causing a particular stormwater retention pond to overtop can be modeled with a beta (a, B ) distribution. Over n years of data collection, the percentages of rainfall events that caused overtopping would be denoted p1, p2, ..., pn.
a. Derive the method-of-moments estimators for the parameters and of the beta distribution.
b. Suppose that over the last 5 years, the percentage of rainfall events that caused overtopping were 2%, 6%, 4%, 3%, and 8%. Use this sample plus the estimators derived in part a. to estimate a and B
What is the ratio of the magnitude of E2 to the magnitude of E1? You may neglect the effects of gravity on the proton.
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A four-lane freeway (two lanes in each direction) is on mountainous terrain with 11-ft lanes, a 5-ft right-side shoulder, interchange spacing of one every 10 miles, and a 60-mi/h base free-flow speed.
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