Answer
$\frac{1}{2}=0.5=50$%
Work Step by Step
If 723 is the median then, by definition (page 130), 50% of the scores are bellow 723 and 50% above.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.