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QUESTION:

The boxplot below displays the student debts (in $) of a large number of students graduating from four-year colleges:

Horizontal boxplot of student debt

Note: The numbers on the x-axis correspond to the minimum, Q1, M, Q3, and the Maximum.

Within which interval would you expect to find the greatest number of student debts?

ANSWER:

$17,000-$21,000

Good job!. Note that 17,000 is below Q1, and 21,000 is the median M, so we expect more than 25% of the student debts to fall in this interval. None of the other intervals have more than 25% of the students' debts; one interval has exactly 25%, and the other two less than 25%.

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