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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Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 - 
x
A. x2 - 
x + 
= 
2
B. x2 - 
x + 
= 
2
C. x2 - 
x + 
= 
2
D. x2 - 
x + 
= 
2
Mathematics
Write the phrase as a mathematical expression. Use x as the variable.The difference of some number and 7.9
A. 7.9x B. x + 7.9 C. x - 7.9 D. 7.9
Mathematics
Use a calculator to find a decimal approximation for the indicated function value. Round your answer to four decimal places.sec 0.59
A. 0.5564 B. 0.6696 C. 1.2035 D. 0.8309
Mathematics
Solve the problem.A quality-control inspector examined 260 calculators and found 6 of them to be defective. At this rate, how many defective calculators will there be in a batch of 7020 calculators?
A. 27 B. 1560 C. 162 D. 5
Mathematics