Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438
B. 0.487
C. 0.91
D. 0.856
Answer: B
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 
< 3.24 × 10-2
B. 
< 7.78 × 10-2
C. 
< 7.78 × 10-3
D. 
< 1.56 × 10-2
Mathematics
Determine if the graph of the function opens upward or downward and whether it has a maximum or a minimum point.f(x) = 8x2
A. Downward, minimum B. Upward, minimum C. Downward, maximum D. Upward, maximum
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Use the power rule and the power of a product or quotient rule to simplify the expression.
3
A. 
B. 
C. 
D. 
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Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics