1.   Find the standard deviation of the set {15, 42, 30, 22, 19, 32} to the nearest hundredth.
    A. 9.91 B. 10.14
    C. 9.05 D. 10.03
    Hint

  2.   How many ways can seven books be arranged on a shelf if one of the books is an algebra text and it must be in the center?
    A. 120 B. 50
    C. 720 D. 625
    Hint

  3.   What is n if n[P(15, 5)] = P(14, 6)?.
    A. 9 B. 15
    C. 120 D. 6
    Hint

  4.   Find C(10, 3).
    A. 34 B. 120
    C. 144 D. 80
    Hint

  5.   Jessie has 3 beaded bracelets, and 4 gold bracelets. She randomly selects 2 to wear to school. What is the probability that she will choose two beaded bracelets?
    A. B.
    C. D.
    Hint

  6.   3 cards are drawn from a standard deck of 52 cards. Find the probability of drawing either 3 red cards or 3 face cards.
    A. B.
    C. D.
    Hint

  7.   Susan forgot to study for her economics quiz. She guessed on all five true/false questions. Does this situation represent a binomial experiment?
    A. Yes, because the answer is right or wrong. B. Yes, because the trials are selected at random.
    C. Yes, because each trial has exactly two outcomes; the probability of each trial is ; there are five trials and these are independent. D. Yes, because the questions are dependent and mutually inclusive.
    Hint

  8.   The Boor Foundation conducted a poll asking people to name the most serious problem facing the nation. Of the 600 people polled, 48% of the randomly selected people answered education. Find the margin of error for this sampling.
    A. 0.5200 B. 0.2039608
    C. 24.96 D. 0.0407922
    Hint

  9.   In 1992, 92% of the people surveyed felt that professional athletes were overpaid. If the margin of error for the sampling was 3%, how many people were surveyed?
    A. 736 B. 327
    C. 225 D. 2944
    Hint

  10.   Which of the following is an example of a dependent event?
    A. rolling a die B. entering a digit of a telephone number
    C. tossing a coin D. picking a numbered ball in a lottery
    Hint

  11.   Suppose three coins are tossed. What is the probability that two will turn up heads, and one turn up tails?
    A. 0.75 B. 0.625
    C. 0.375 D. 0.125
    Hint

  12.   According to NFL statistics, the Cincinnati Bengals will be blown out in 5 out of 16 games, regardless of opponent. What are the odds of Cincinnati playing a close game?
    A. 11:5 B. 11:16
    C. 16:5 D. 5:11
    Hint

  13.   Eddie flips a coin, rolls a die, and draws one card from a standard deck of 52. What is the probability that he turned up heads, rolled a prime number, and picked a king or queen?
    A. 0.026 B. 0.019
    C. 0.038 D. 0.051
    Hint

  14.   There are 25 things that can break on a car. Seven are maintenance problems, 14 are small repairs, and 4 are major problems. If a problem occurs at random, what is the probability that it is not a major problem?
    A. B.
    C. D.
    Hint

  15.   In the set of data
{113, 146, 146, 154, 157, 170, 181},
which measure of central tendency has the highest value? What is the value?
    A. median, 154 B. mode, 146
    C. mean, 152 D. mean, 178
    Hint

  16.   Describe the set of data
{33, 35, 38, 44, 45, 45, 46, 46, 46, 47}.
    A. positively skewed B. cannot be determined
    C. negatively skewed D. normal distribution
    Hint

  17.   Which of the following is an example of a continuous probability distribution?
    A. the rent for an apartment in a particular city B. the amount of time it takes to run a mile
    C. the number of people who like chocolate ice cream D. the number of stars that are bright enough to see
    Hint

  18.   Which of the following is not a necessary condition in a binomial experiment?
    A. There is a fixed number of trials. B. The probabilities of each trial are the same.
    C. There are exactly two possible outcomes for each trial. D. The probability of each outcome is the same.
    Hint



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