Question: Please help!! A research team conducted a study showing that approximately 15% of all businessmen who wear ties wear them so tightly that they actually

Please help!!

A research team conducted a study showing that approximately 15% of all businessmen who wear ties wear them so tightly that they actually reduce blood ow to the brain, diminishing cerebral functions. At a board meeting of 20 businessmen, all of whom wear ties, what are the following probabilities? (Round your answers to three decimal places.) m use SALT (a) at least one tie is too tight 0.794 (b) more than two ties are too tight (c) no tie is too tight (d) at least 18 ties are not too tight

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