Provide an appropriate response.A shipment of 20 digital cameras contains two that are defective. A random sample of three is selected and tested. Let X be the random variable associated with the number of defective cameras in a sample. Find the probability distribution of X and the expected number of defective cameras in a sample.

What will be an ideal response?



; 0.3

Mathematics

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Describe the level surfaces for the given function.f(x, y, z) = (7x2 - 8y2 - 6z2)3/2

A. Hyperboloids of two sheets B. Ellipsoids C. Hyperboloids of one sheet D. Paraboloids

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Find the limit.

A. 0 B. -? C. -1 D. ?

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Solve.x2 + y2 + 10y = 0x2 + y2  = 6x

A. (0,0)  
B. (1,0)  
C. (1, -1)  
D. (0,1)  

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State whether the parabola opens upward or downward.f(x) = -3x2

A. Upward B. Downward

Mathematics