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The Creating box plots exercise appears under the 6th grade (U.S.) Math Mission and High school statistics and probability Math Mission. This exercise teaches how to create box-whisker plots (also called boxplots in some contexts).

Types of Problems

There is one type of problem in this exercise:

  1. Make the box-whisker plot: This problem provides a list of several numbers. The user is asked to create a box-whisker plot from the available data using the manipulative.
    Bwp

    Make the box-whisker plot

Strategies

This exercise is easy to get accuracy badges as long as the user knows how to calculate the five-number summary. It is medium to get speed badges especially if user uses the manipulative to put the numbers in numerical order.

  1. The five-number summary consists of the Minimum, the First Quartile, the Median, the Third Quartile, and the Maximum.
  2. The First Quartile is the median of the lowest half of numbers and the Third Quartile is the median of the upper-half of data values.
  3. Khan Academy accepts the calculation of quartiles where the user removes the median when there are an odd number of data points.
  4. The user does not need to put the numbers in order to get the right answer, it is not part of the solution, only the plot.
  5. The TI-83/84 level calculator can be used by quickly writing the data values into L1 and performing 1-VarStats on L1 (the five-number summary is found by scrolling downward).

Real-life Applications

  1. Data and statistics appear in news reports and in the media every day.
  2. Many of the problems in this exercise could be viewed as real-life applications.
  3. Statistics can be seen more frequently than calculus in every day life.

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