Question 2.237

100. Small businesses. The U.S. Census Bureau tracks the number of small businesses per city. The accompanying frequency polygon represents the numbers of small businesses per city (in thousands) for 266 cities nationwide.

  1. What is the class width?
  2. What is the lower class limit of the leftmost class? (Hint: Don't forget about the units.)
  3. Which class has the highest frequency?
  4. Which class has the lowest frequency?
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