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Mathematics, 19.03.2020 22:07 Kay6718
The scores of students on the ACT college entrance exam in a recent year had the normal distribution with mean =18.6 and standard deviation =5.9. a) What is the probability that a single student randomly chosen from all those taking the test scores 21 or higher? b) The average score of the 76 students at Northside High who took the test was x =20.4. What is the probability that the mean score for 76 students randomly selected from all who took the test nationally is 20.4 or higher?
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The scores of students on the ACT college entrance exam in a recent year had the normal distribution...
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