1.   Find the interquartile range of {61, 65, 65 ,66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
    A. 77 B. 87
    C. 65.5 D. 21.5
    Hint

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

  3.   Every fifth person that comes out of a library is asked whether they prefer to read a book or watch a movie. Is this biased or unbiased and why?
    A. unbiased, because the location is not important B. biased, because the sample is not representative of everyone in the library
    C. biased, because a library loans out primarily books D. unbiased, because they are using a systematic random sample
    Hint

  4.   Which of the following is not necessarily considered a part of the population?
    A. census B. biased sample
    C. the data collector D. random sample
    Hint

  5.   Find .
    A.
    B.
    C.
    D.
    Hint

  6.   Find A + C.
   
    A. B.
    C. impossible D.
    Hint

  7.   How many measurement classes are represented on the histogram?
   
    A. 70 B. 9
    C. 44 D. 14
    Hint

  8.   How many children attend this child care facility?
   
    A. 6 B. 14
    C. 100 D. 70
    Hint

  9.   Find the interquartile range of the data.
   
    A. 13 B. 23
    C. 61 D. 10
    Hint

  10.   Determine the interquartile range of the data.
   
    A. 3 B. 9.5
    C. 18 D. 6.5
    Hint



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