Probability that both roots of the equation
Let A, B, and C be independent random variables, uniformly distributed over [0,4], [0,3], and [0,6] respectively. What is the probability that both roots of the equation Ax2+Bx+C=0 are real?
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Suppose that in one small town the average income is $34,200 with a stansard deviation of $2200. What percent of housholds between $29,800 and $38,600?
Find the sum of the positive and negative rank sums as in a Wilcoxon signed-rank test.
50.0 mL of water are placed in a calorimeter. When 15.0 g of ice are added to the calorimeter, the temperature drops from 70.0 C to51.2 C. Calculate the heat of fusion of ice in kJ/g, and inkJ/mol
Why is it that a solution of sodium dichromate in sulfuric acid is perfect to oxidize a secondary alcohol to a ketone...is it equally good a reagent for the oxidation of a primary alcohol to a aldehyde (are there better available?)
A zero-order reaction has a constant rate of 1.60*10-4M/s. if after 40.0s the concentration has dropped to1.00*10-2 M, what is the initial concentration?
An economist wants to estimate the mean income for teh first year work for a college graduate who has had the profound wisdom to take a statistics course.
Calculate the overall heat transfer coefficient (U) for the assumed tube diameter, finshape and material. Use correlations to estimate hot-and cold-side convectioncoefficients.
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