A research team conducted a study showing that approximately 10% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions. At a board meeting of 15 businessmen, all of whom wear ties, what are the following probabilities?
a.) more than two ties are too tight
b.) no tie is too tight
1 answer
10% of 15 is what? You have to round up. All the businessmen wear their ties too tight. Remember you're being asked what is the probability, not what actually is.