1.   The number of calories for a serving of different brands of potato chips and tortilla chips is shown in the back-to-back stem-and-leaf plot below. Which statement is correct?
   
    A. The data for potato chips and the data for tortilla chips have the same mode(s).
    B. Most of the potato chip brands have less than 150 calories per serving.
    C. Potato chips and tortilla chips both have the same mean number of calories.
    D. Most of the tortilla chip brands have less than 150 calories per serving.
    Hint

  2.   Which measure of variation does not depend on the mean?
    A. standard deviation B. range
    C. mode D. variance
    Hint

  3.   What appears to happen in the graph?
   
    A. Sales have cut in half each month. B. Sales have slightly increased.
    C. Sales have doubled each month. D. Sales have dropped.
    Hint

  4.   What appears to happen in the graph?
   
    A. Production has doubled each month. B. Production dropped in half each month.
    C. Production increased each month. D. Production has decreased slightly.
    Hint

  5.   Why is the graph misleading?
   
    A. Bars appear to have cut in half. B. Color is misleading.
    C. Months are out of order. D. Scale is not at even intervals.
    Hint



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