Geography, 27.09.2019 16:30 carroch

The 3 different ways to estimate the lc50 are exposure are concentration vs % mortality (linear graphically), log of exposure concentration vs % mortality on the probit scale (graphically) and an excel spreadsheet program that determines lc50 and confidence intervals.

1. you have used 3 different ways to estimate the lc50, how comparable are these estimates? is one better than the other? why?

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