Problem #$2$

A researcher is interested in the occurrence of trematodes in fifty $1-$cm$2$ sections of intestine.$$ She will present her results on the spatial distribution of parasites and prepares an abstract summarize her analysis and results.

$$

$$ Trematodes$/$cm$2$ Frequency

$00$

$19$

$218$

$312$

$44$

$52$

$63$

$71$

$81$