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3 April, 15:58

A study of an association between which ear is used for cell phone calls and whether the subject is left-handed or right-handed began with a survey e-mailed to 5000 people belonging to an otology online group, and 717 surveys were returned. (Otology relates to the ear and hearing.) What percentage of the 5000 surveys were returned

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  1. 3 April, 17:23
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    First establish th at 5,000 = 100%.

    Then find how much percent 717 is of 5,000:

    717/5000 * 100 = 14.34%

    Ans. = 14.34%
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