Posted by Brandon on Thursday, May 16, 2013 at 7:19pm.
Mrs little create a box plot for the test scores on her latest math test. she finds that the interquartile range is 20 points. what is the Mean?

math (incomplete)  PsyDAG, Friday, May 17, 2013 at 1:09pm
Mean ± 10 points = middle 50% (interquartile range).
More data needed.