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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Write out the first five terms of the sequence for n = 1, 2, 3, 4, and 5.an = 2(4n - 2)
A. 4, 12, 20, 28, 36 B. 4, 8, 12, 16, 20 C. -4, 4, 12, 20, 28 D. 2, 6, 10, 14, 18
Solve the problem.Two months ago, there were x horses on a ranch. The number of horses is now 4 times that. Write an expression to show the present number of horses.
A. (4 + 2x) horses
B. 4x horses
C. (4 - x) horses
D. 
horses
Find the period of the function y = 3sec x and sketch its graph.
What will be an ideal response?
Solve the problem.An employee was paid $20,625 during the first half of last year. During the second half he was paid $40,858. How much more was his income during the second half?
A. $61,473 B. $20,233 C. $20,223 D. $61,483