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In: Statistics and Probability

A magazine published the results of an extensive investigation of broiler chickens purchased from food stores...

A magazine published the results of an extensive investigation of broiler chickens purchased from food stores in 23 regions. Tests for bacteria in the meat showed that 61​% of the chickens were contaminated with​ campylobacter, 19​% with​ salmonella, and 6​% with both.

​a) What's the probability that a tested chicken was not contaminated with either kind of​ bacteria?

​b) Are contamination with the two kinds of bacteria​ disjoint? Explain.

​c) Are contamination with the two kinds of bacteria​ independent? Explain.

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