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(Created page with "<div class="d-none"><math> \newcommand{\NA}{{\rm NA}} \newcommand{\mat}[1]{{\bf#1}} \newcommand{\exref}[1]{\ref{##1}} \newcommand{\secstoprocess}{\all} \newcommand{\NA}{{\rm NA}} \newcommand{\mathds}{\mathbb}</math></div> The students in a certain class were classified by hair color and eye color. The conventions used were: Brown and black hair were considered dark, and red and blonde hair were considered light; black and brown eyes were considered dark, and blu...")
 
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The students in a certain class were classified by hair color and eye color.  The conventions used were:  Brown and black hair were
\newcommand{\NA}{{\rm NA}}
\newcommand{\mat}[1]{{\bf#1}}
\newcommand{\exref}[1]{\ref{##1}}
\newcommand{\secstoprocess}{\all}
\newcommand{\NA}{{\rm NA}}
\newcommand{\mathds}{\mathbb}</math></div>  The students in a certain class were classified by hair
color and eye color.  The conventions used were:  Brown and black hair were
considered dark, and red and blonde hair were considered light; black and brown
considered dark, and red and blonde hair were considered light; black and brown
eyes were considered dark, and blue and green eyes were considered light.  They
eyes were considered dark, and blue and green eyes were considered light.  They

Latest revision as of 00:22, 14 June 2024

The students in a certain class were classified by hair color and eye color. The conventions used were: Brown and black hair were considered dark, and red and blonde hair were considered light; black and brown eyes were considered dark, and blue and green eyes were considered light. They collected the data shown in Table.

Observed data.
Dark Eyes Light Eyes
Dark Hair 28 15 43
Light Hair 9 23 32
37 38 75

Are these traits independent? (See Example.)