Exam 11: Sequences, Series, and Probability
Exam 1: Equations and Inequalities67 Questions
Exam 2: Functions and Graphs88 Questions
Exam 3: Polynomial and Rational Functions79 Questions
Exam 4: Exponential and Logarithmic Functions95 Questions
Exam 5: Trigonometric Functions58 Questions
Exam 6: Trigonometric Identities and Equations25 Questions
Exam 7: Applications of Trigonometry24 Questions
Exam 8: Topics in Analytic Geometry102 Questions
Exam 9: Systems of Equations and Inequalities35 Questions
Exam 10: Matrices29 Questions
Exam 11: Sequences, Series, and Probability66 Questions
Exam 12: Preliminary Concepts63 Questions
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Six cards are chosen at random from a standard deck of playing cards. In how many ways can the cards be chosen if all six cards are clubs.
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(Multiple Choice)
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Correct Answer:
A
In how many ways can a student answer a 32-question true-false test if the student randomly marks 6 of the questions true and 26 of the questions false?
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Correct Answer:
D
Suppose that $500,000 of counterfeit money is currently in circulation and that each time the counterfeit money is used, 35% of it is detected and removed from circulation. How much counterfeit money, to the nearest thousand dollars, is used in transactions before all of it is removed from circulation?
(Multiple Choice)
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Thirty people enter a tennis tournament. How many different first-round matches are possible if each player can be matched with any other player?
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Write the rational number
as the quotient of two integers in simplest form.

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Sometimes a city will argue that having a professional sports franchise in the city will contribute to economic growth. The rationale for this statement is based on the multiplier effect. Suppose a city estimates that a professional sports franchise will create $45 million of additional income and that a person receiving a portion of this money will spend 80% and save 20%. Assuming the multiplier effect model is accurate, what is the net effect of the $45 million? Round to the nearest hundred thousand.
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A six-digit binary number is a sequence of six digits, each consisting of 0 or 1. For instance, 101010 and 011011 are six-digit binary numbers. How many six-digit binary numbers are possible?
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Find the n th term of the geometric sequence. 5, -10, 20,...
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A car holds seven passengers, four in the front seat and three in the back seat. How many different seating arrangements of seven people are possible if two people refuses to sit in front and one person refuses to sit in back?
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As a test for extrasensory perception (ESP), eight cards, four black and four white, are shuffled, and then a person looks at each card. In another room, the ESP subject attempts to guess whether the card is black or white. The ESP subject must guess black four times and white four times. If the ESP subject has no extrasensory perception, what is the probability that the subject will correctly name six of the eight cards? Round to the nearest thousandth.
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Twelve persons are arranged in a line. What is the probability that three specific people are standing next to each other?
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Use mathematical induction to prove the formula for every positive integer n . Show all your work. 

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