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

Mathematics

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Provide an appropriate response.The demand function for a manufacturer's product is given by p = 300 - q2, where p is the price per unit when q units are demanded.(a)Determine the point elasticity of demand when q = 5.(b)For q = 5, is demand elastic, inelastic, or does it have unit elasticity?(c)For what value of q does demand have unit elasticity?

What will be an ideal response?

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Find the equation of the tangent line to the curve when x has the given value.f(x) = 5x2 + x ; x = -4

A. y =  + 
B. y = -39x - 80  
C. y = 13x - 16  
D. y = -  + 

Mathematics

Find the vertex, the y-intercept, and the x-intercepts (if any exist), and graph the function.f(x) = -x2 - 2x + 3

A.

Vertex (1, 4); 
x-int = (-1,0) and (3, 0); 
y-int = (0, 3)
B.

Vertex (- 1, 4); 
x-int = (-1,0) and (3, 0); 
y-int = (0, 3)
C.

Vertex (- 1- 4); 
x-int = (-3,0) and (1, 0); 
y-int = (0, 3)
D.

Vertex (- 1, 4); 
x-int = (-3,0) and (1, 0); 
y-int = (0, 3)

Mathematics

Find f (2) .

Mathematics