mean.standard deviation

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Question

The scores for the verbal portion of the SAT test for high school seniors follow the normal curve with mean of 450 and standard deviation of 150. what percent of the test scores fall between 42 and 480??? what is the chance that simple random of 100 SAT verbal exams has a mean score between 420 and 4... Mar 26 2012 10:03 PM

 

Solution ID:609035 | This paper was updated on 26-Nov-2015

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