1.   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. biased, because a library loans out primarily books B. biased, because the sample is not representative of everyone in the library
    C. unbiased, because they are using a systematic random sample D. unbiased, because the location is not important
    Hint

  2.   City hall was conducting a survey concerning social issues. In order to take part, citizens had to pick up the forms at city hall. What kind of sample is this?
    A. biased, convenience B. unbiased, random sample
    C. unbiased, systematic random sample D. biased, voluntary
    Hint

  3.   Find .
    A.
    B.
    C.
    D.
    Hint

  4.   If A = , what is 5A?
    A.
    B.
    C.
    D.
    Hint

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

  6.   How many measurement classes are represented on the histogram?
   
    A. 6 B. 99
    C. 10 D. 50
    Hint

  7.   Find the range of the data.
   
    A. 23 B. 61
    C. 19.5 D. 42.5
    Hint

  8.   Find the median of the data.
   
    A. 19.5 B. 42.5
    C. 23 D. 29.5
    Hint

  9.   What is the greatest value of the data?
   
    A. 10 B. 9.5
    C. 19 D. 13
    Hint

  10.   Draw a box-and-whisker plot of the data.
   
    A.
    B.
    C.
    D.
    Hint



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