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9-47.

Louis recorded how many times he could jump rope without stopping.

Find the median, first quartile, and third quartile of his data.  

Arrange the data in ascending numerical order.

Find the middle number, the middle number of the upper half, and the middle number of the lower half.

Median
Upper Quartile
What is the value of the lower quartile?

Use the eTool below to help you complete the problem.
Click the link at right for the full version of the eTool: 9-47 HW eTool