Biologists in Louisiana have become concerned about cadmium levels in the water near New Orleans and the probability that frogs will die out. They performed an experiment on bullfrog tadpoles to determine how toxic cadmium is to bullfrogs. Suppose a small river with a population of 10,000 frogs becomes polluted with cadmium to a level of 3 mg per gallon per day. About how many bullfrogs would be expected to die?
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