Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275
B. 0.22
C. 0.5667
D. 0.7083
Answer: A
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A hypothetical management science problem requires us to find the cheapest "supercircuit" in a graph. Three algorithms are available: Algorithm 1, Algorithm 2, and Algorithm 3.Algorithm 1 always produces the cheapest supercircuit. The amount of time it takes to carry out Algorithm 1 doubles every time we increase the number of vertices by one. Algorithm 1 is
A. an approximate and efficient algorithm. B. an optimal and inefficient algorithm. C. an approximate and inefficient algorithm. D. an optimal and efficient algorithm. E. none of these
Find the average value of the function over the region.f(?, ?, ?) = ? cos ? over the solid lower ball ? ? 10, ?/2 ? ? ? ?
A. 
B. - 2500?
C. - 
D. 
Solve the right triangle shown in the figure. Round lengths to one decimal place and express angles to the nearest tenth of a degree. 
a = 17.1, c = 26.8
A. A = 39.6°, B = 50.4°, b = 31.8 B. A = 57.5°, B = 32.5°, b = 31.8 C. A = 39.6°, B = 39.6°, b = 20.6 D. A = 39.6°, B = 50.4°, b = 20.6
Graph the line whose equation is given.y = - 
x - 1
A. 
B. 
C. 
D. 