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8-53.

Ms. Poppy has finished grading her students’ tests. The scores were , , , , , , , , , , , , , and .  

  1. Find the median.

    Recall that the median is the middle number of an ordered set of data.

  1. Find the quartiles.

    Along with the median, the quartiles divide a set of data into four groups of the same size.


  1. Find the IQR.

  1. Find the mean.

    Recall that the mean refers to the average of a set of data.