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Posted by on Tuesday, March 8, 2011 at 7:44pm.

A recent survey found that 63% of all adults over 50 wear glasses for driving. In a random sample of 80 adults over 50, what is the mean and standard deviation of those that wear glasses?

  • Statistics - , Wednesday, January 21, 2015 at 8:29am

    0.6

  • Statistics - , Thursday, March 24, 2016 at 2:23pm

    ohh

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