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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Solve the problem.If the height of a right circular cylinder is quadrupled and the radius is divided by three, how is the volume changed?
A. It is multiplied by 
B. It is multiplied by 
C. It is multiplied by 
D. It is multiplied by 
Mathematics
Solve.The sum of the areas of two square plots of land is 2122 m2 and the difference of their areas is 1240 m2. Find a length of a side of each plot.
A. 22 m, 62 m B. 40 m ,20 m C. 5.25 m, 41 m D. 41 m, 21 m
Mathematics
Simplify.6 ? 3 - 6 ? 5 + (-20)
A. 8 B. 32 C. 28 D. -32
Mathematics
Find the indicated extreme value of f subject to the given constraint.Maximum of 
subject to 
A. Maximum: 3 at (±1, 0) B. Maximum: 4 at (±1, 0) C. Maximum: 8 at (0, ±1) D. Maximum: 3 at (0, ±1)
Mathematics