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Scores on a test of reading ability for second graders are normally distributed with a mean...

Scores on a test of reading ability for second graders are normally distributed with a mean of 60 and a standard deviation of 11. The principal of a school wants to identify the students who are in the top 5% of the class for participation in accelerated work in reading. What is the minimum raw score a student must have to be in the top 5%

a. 65

b. 78.5

c. 66.65

d. 77.58

math   Statistics-And-Probability   
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