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Statistics
The Graduate Record Examination (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following
asked by Jill on September 22, 2014 
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A final exam in Math 160 has a mean of 73 with standard deviation 7.73. Assume that a random sample of 24 students is selected and the test score of the sample is computed. Assuming the scores are normally distributed, what
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1) Entry to a certain University is determined by a national test. The scores on this test are normally distributed with a mean of 500 and a standard deviation of 100. Tom wants to be admitted to this university and he knows that
asked by joane on October 24, 2012 
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4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems:
asked by Kendra on November 22, 2014 
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Score Percentile Score Percentile Score Percentile Score Percentile 3.5 0.02 1 15.87 0 50 1.1 86.43 3 0.13 0.95 17.11 0.05 51.99 1.2 88.49 2.9 0.19 0.9 18.41 0.1 53.98 1.3 90.32 2.8 0.26 0.85 19.77 0.15 55.96 1.4 91.92
asked by Need Help!!! on May 12, 2012

Statistics
Scores on the SAT form a normal distribution with u=500 and o=100. a. You are trying to qualify for a scholarship and find out that you need to have a higher score than at least 75% of the students. What score will you need? b.
asked by Amaya on December 14, 2015 
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The GRE has a combined verbal and quantitative mean of 1000 and standard deviation of 200. Scores range from 200 to 1600. a. what % of the persons score above 1300? b. above 800? c. below 1200? d. above what score do the top 20%
asked by Terry on April 17, 2016 
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Across the USA, results for these exams are normally distributed. What does that mean and why is this the case? If you were to create a histogram of all GRE scores, what would you expect the histogram to look like? Would it be
asked by Natasha on December 16, 2015 
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A maintenance supervisor is comparing the standard version of an instructional booklet with one that has been claimed to be superior. An experiment is conducted in which 26 technicians are divided into two groups, provided with
asked by Jeniffer on August 5, 2009 
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the mean is 3.5. dtandard deviation is .5. sally's score is 1.5 on test. how many standard deviations is she from the mean? billy scores 5. what is his standard score? what scale of measurement is being used? is it appropriate?
asked by dee on March 24, 2010 
statisticsnormal distribution
a set of data is normally distributed with a mean of 500 and a standard deviation of 100. a) what would the standard score fora score of 700 be? b) what % of scores is between 500 and 700? c) what would the percentile rank for a
asked by mary can someone please solve,lost on October 28, 2010
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