====== chi square test eg. 1 ======

<tabbed>
  * :r:chi-square test:code01
  * *:r:chi-square test:output01
</tabbed>

====== chi square test eg. 2 ======
<tabbed>
  * :r:chi-square test:code02
  * *:r:chi-square test:output02
</tabbed>

====== chi square test eg. 3 ======
<tabbed>
  * :r:chi-square test:code03
  * *:r:chi-square test:output03
</tabbed>
{{tag> statistics r "chi-square test"}}