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Author Question: A recent survey found that 79% of all adults over 50 wear sunglasses for driving. In a random sample ... (Read 96 times)

tth

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A recent survey found that 79% of all adults over 50 wear sunglasses for driving. In a random sample of 80 adults over 50, what is the mean and standard deviation of those that wear sunglasses?
◦ mean: 16.8; standard deviation: 7.94984277
◦ mean: 63.2; standard deviation: 3.64307562
◦ mean: 16.8; standard deviation: 3.64307562
◦ mean: 63.2; standard deviation: 7.94984277


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Marked as best answer by tth on Jan 16, 2020

Liddy

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tth

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Reply 2 on: Jan 16, 2020
Great answer, keep it coming :)


yeungji

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Reply 3 on: Yesterday
Excellent

 

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