A survey was designed to study how brook trout populations respond to various levels of urbanization. Urbanization had three levels: low, medium, and high impact. Historical habitats for brook trout were observed, with 200 habitats randomly selected within each level of urbanization, for a total of 600 habitats. Researchers marked each population as extirpated or present. The data are given in the following two-way table.
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?
$$\begin{array} { | l | l | l | l | }
\hline & \text { Extirpated } & \text { Present } & \text { Total } \
\hline \text { Low impact } & 25 & 175 & 200 \
\hline \text { Medium impact } & 80 & 120 & 200 \
\hline \text { High impact } & 195 & 5 & 200 \
\hline
\end{array}$$ What percent of habitats subject to high levels of urbanization were found to be present?

Question

A survey was designed to study how brook trout populations respond to various levels of urbanization. Urbanization had three levels: low, medium, and high impact. Historical habitats for brook trout were observed, with 200 habitats randomly selected within each level of urbanization, for a total of 600 habitats. Researchers marked each population as extirpated or present. The data are given in the following two-way table.
?
?
$$\begin{array} { | l | l | l | l | } 
\hline & \text { Extirpated } & \text { Present } & \text { Total } \
\hline \text { Low impact } & 25 & 175 & 200 \
\hline \text { Medium impact } & 80 & 120 & 200 \
\hline \text { High impact } & 195 & 5 & 200 \
\hline
\end{array}$$ What percent of habitats subject to high levels of urbanization were found to be present?

Quizplus · Accepted Answer

The Answer is A

A Survey Was Designed to Study How Brook Trout Populations