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Moths lethality of insecticide

In this study groups of 20 male and female moths were exposed to various doses of trans-cypermethrin in order to examine the lethality of the insecticide. After three days it was registered how many moths were dead or immobilized. Data are shown in the table below. Dose presents the actual doses in microgram, and Log.dose shows the log-transformation (of base 2).

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