Which of the following summary measures cannot be easily approximated from a box plot?
A)The range
B)The interquartile range
C)The second quartile
D)The standard deviation

Question

Quizplus · Accepted Answer

The standard deviation cannot be easily approximated from a box plot. Box plots only show information about the spread of data within the interquartile range, and do not provide information about the overall distribution or the extent of outliers. The range and interquartile range can be approximated from a box plot, as can the median (or second quartile) by finding the horizontal line within the box.

Which of the Following Summary Measures Cannot Be Easily Approximated