Page 18 - Math SL HB Sem 3

A box plot for a symmetrical disribution would look like rhis:

*4

The whiskers are of equal
length and rhe median is in
the middle of rhe box.
For a positively skewed distribution;

orQ Qr
The right-hand whisker is
longer and the median is
nearer to the lowcr quanile.

For a ncgatively skerved distribution:

Qr Qz$
Thc le'tt-hrnd rvhisker is
T Iongcr end the n:edian is
liclrlcr to rhe uppcr quarrile.

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