andrewllewis3326 andrewllewis3326

26-03-2018
Business

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A recent survey found that 60% of all adults over 50 wear sunglasses for driving. in a random sample of 20 adults over 50, what is the mean and standard deviation of those that wear sunglasses?

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mariaweis mariaweis

26-03-2018

mean: 13.8 standard deviation:2.06833266

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