Practice Quiz

DSST Principles of Statistics Exam Prep

Category - DSST Statistics Free Test Prep

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NEC launches a new TV set in Washington State in 2008 with a limited release. Company executives are interested in tracking sales' patterns in order to make production decisions for the following year. What graphical tool can display sales figures by month?

  1. histogram
  2. run chart
  3. CTQ tree
  4. process map
Explanation

Answer: A - A histogram is a graphical tool that captures statistical frequencies.

Key Takeaway: Frequencies provide important statistical information such as the amount of sales, number of cars on the road, or the number of TV sets sold. A histogram is a graphical tool that captures statistical frequencies by displaying them as bars with heights corresponding to the frequency.

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