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A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia...

A 2005 Gallup Poll found that 7% of teenagers (ages 13 to 17) suffer from arachnophobia and are extremely afraid of spiders. At a summer camp there are 8 teenagers sleeping in each tent. Assume that these 8 teenagers are independent of each other. (a) Calculate the probability that at least 1 of them suffers from arachnophobia. (b) Calculate the probability that exactly 3 of them suffer from arachnophobia. (c) Calculate the probability that at most 3 of them suffers from arachnophobia.

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