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
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Find the global maxima and minima of the function on the given domain.
on the trapezoidal region with vertices 
and 
A. Global maximum: 12 at 
global minimum: 6 at 
B. Global maximum: 9 at 
global minimum: 6 at 
C. Global maximum: 9 at 
global minimum: 0 at 
D. Global maximum: 6 at 
global minimum: 0 at 
Find the standard deviation. Round to one more place than the data.15, 11, 20, 15, 19, 13, 11, 9, 17, 23
A. 1.7 B. 4.0 C. 4.5 D. 4.1
List the terms of the expression.2x4 - 4x2 - 4x - 2
A. 2, x4, 4, x2, 4, x, 2 B. 2x4, -4x2, -4x, -2 C. 2x4, 4x2, 4x, 2 D. 2, x4, -4, x2, -4, x, -2
Determine the domain and the range of the function.f(x) = -x2 + 12x
A. domain: {x|x ? 6} range: {y|y ? 36} B. domain: all real numbers range: {y|y ? 36} C. domain: all real numbers range: {y|y ? -36} D. domain: {x|x? -6} range: {y|y ? 36}