1.   A best-fit line drawn on a scatter plot ________
    A. must be drawn through the first and last data points.
    B. approximates the linear relationship of data points.
    C. always has a positive slope.
    D. is a line that goes through every data point.
    Hint

  2.   How do the medians of the two sets of exam scores compare?
   
    A. The medians are equal.
    B. The median of Exam A is greater than the median of Exam B.
    C. The median of Exam A is less than the median of Exam B.
    D. The answer cannot be determined since the median is not shown in a box and whisker plot.
    Hint

  3.   How many lines are determined by 7 points, no three of which are collinear?
    A. 200 B. 105
    C. 42 D. 21
    Hint

  4.   What is the probability of selecting 3 vowels at random from the word mathematics?
    A. B.
    C. D.
    Hint

  5.   Kim has 3 blue sweaters, 2 red sweaters, and 5 white sweaters in a dresser drawer. If she selects 3 sweaters at random with replacement, what is the probability she will select a red one first, white second, and blue third?
    A. B.
    C. D.
    Hint

  6.   How many different two-person teams can be made from 6 people?
    A. 30 B. 120
    C. 360 D. 15
    Hint

  7.   The table shows the results when a number cube was rolled. What is the experimental probability of rolling an even number?
   
    A. B.
    C. D.
    Hint

  8.   The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a number that is greater then or equal to five?
   
    A. B.
    C. D.
    Hint

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

  10.   Elizabeth has 12 female friends and 10 male friends. If she is having an eight-person party, what is the probability that there will be 5 girls and 3 boys, if she chooses people at random?
    A. 0.594 B. 0.297
    C. 0.152 D. 0.149
    Hint

  11.   Suppose that the mean is 50. How many standard deviations away is the value 65?
    A. about 1 standard deviation B. within 1 standard deviation
    C. cannot be determined from given information D. about 2 standard deviations
    Hint

  12.   A card is drawn at random from a standard deck of 52 playing cards. What is the probability that the card is red or a spade?
    A. or B. or
    C. D.
    Hint

  13.   Two cubes are rolled. What is the probability that the sum of the numbers is 4 or 7?
    A. B.
    C. D.
    Hint

  14.   Compute the variance and standard deviation for the set of {3, 4, 4, 7, 9, 9, 12, 16}. Round to the nearest tenth.
    A. 4.2; 2.0 B. 16.5; 4.1
    C. 15.8; 4.0 D. 17.5; 4.2
    Hint



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