1.   What is the interquartile range of Exam A?
   
    A. 11 B. 35
    C. 16 D. 5
    Hint

  2.   To conduct a survey about the people of Wisconsin, 100 people were chosen from each county based on a recent census. What kind of sample is this?
    A. biased, convenience B. unbiased, stratified random sample
    C. biased, voluntary D. unbiased, random sample
    Hint

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

  4.   Find .
    A. B.
    C. D.
    Hint

  5.   Suppose the matrix represents the records of the top four teams in a baseball season. If someone used this matrix to predict the total number of wins and losses by the second place team in the next decade (ten years), how many wins and losses would they predict?
    A. 980 wins, 950 losses B. 950 wins, 670 losses
    C. 910 wins, 710 losses D. 980 wins, 640 losses
    Hint

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

  7.   The least number of children fall in which interval?
   
    A. 15-29 months B. 0-14 months
    C. cannot be determined D. 30-44 months
    Hint

  8.   Find the lower quartile of the data.
   
    A. 42.5 B. 19.5
    C. 29.5 D. 2
    Hint

  9.   Find the upper quartile of the data.
   
    A. 19.5 B. 29.5
    C. 63 D. 42.5
    Hint

  10.   What is the least value of the data?
   
    A. 3.5 B. 13
    C. 1 D. 19
    Hint



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