In a diet analysis of three different species of juvenile fish, a researcher surveys the prey of brook trout, coho salmon, and steel head trout found in a tributary of Lake Superior. The researcher assumes that each count in the survey corresponds to a unique fish. After categorizing the prey into small, medium, or large sizes, the researcher cross-classifies the data into a two‑way table.

Species	small prey	medium prey	large prey
brook trout	285285	12591259	120120
coho salmon	864864	808808	8080
steel head trout	635635	19831983	269269

Use the data in the table to compute the total count of fish.

total count =

Suppose that the researcher randomly selects one fish from the total in the survey. Find the probability, ????P, that the fish will be a steelhead trout eating a small size prey. Enter the probability, ????P, as a decimal rounded to three places.

Answer rating: 100% (QA)

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