?A card is chosen at random from three 52-card decks of standard playing cards. What is the probability that the card will be black and a face card? A face card is a king, a queen, or a jack.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Find the distance between the points (-2, -3) and (6, 10). ?
A.
B.
C.
D.
E.
Multiply and simplify. Assume variables do not cause any denominators to equal 0.42 ?
A.
B. 12
C. 14
D. -4
Find the future value of the annuity due. Assume that interest is compounded annually, unless otherwise indicated.Payments of $500 made at the beginning of each year for 12 years at 6% compounded annually
A. $8941.07 B. $16,268.30 C. $6985.82 D. $7934.97
Use the method of natural frequencies to find the indicated probability.Some employers use lie detector tests to screen job applicants. Lie detector tests are not completely reliable. Suppose that in a lie detector test, 66% of lies are identified as lies and that 14% of true statements are also identified as lies.A company gives its job applicants a polygraph test, asking "Did you tell the truth on your job application?". Suppose that 94% of the job applicants tell the truth during the polygraph test. What is the probability that a person who fails the test was actually telling the truth?
A. 0.301 B. 0.14 C. 0.231 D. 0.769