Question

Mrs. Jones created a box plot for quiz scores made by two of her classes (Data Set 1 and Data Set 2). Which class, if any, has the smaller interquartile range?

A) Data set 1
B) Data set 2
C) The interquartile ranges are equal.
D) You cannot determine interquartile ranges from boxplots.

Answer 1

Mrs. Jones created a box plot for quiz scores made by two of her classes (Data Set 1 and Data Set 2).

Given,

Mrs Jones created a box plot for quiz scores made by two of her classes (Data Set 1 and Data Set 2).  

The class that has the smaller interquartile range is determined by the boxplots.

From the attached figure, it's clear that

the Data set 2 has a smaller interquartile range.  

The box is more narrow for this class than that of Data set 1.

Therefore, option B is correct.