Question: Coliform bacteria are randomly distributed in a certain Arizona River at an average concentration of 1 per 20 ccs of water. a). If we draw

Coliform bacteria are randomly distributed in a certain Arizona River at an average concentration of 1 per 20 ccs of water.

a). If we draw a test tube containing 10 ccs of water from the river, use the Poisson probability mass function to determine the chance that the sample contains exactly 2 coliform bacteria.

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