Question 571950
The senior class has been given a comprehensive examination to asses educational experience. The mean on the test was 75 and the standard deviation was 11. What percentage of the students had scores above 80?
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z(80) =(80-75)/11 = 0.4545
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P(x > 80) = P(z > 0.4545) = normalcdf(0.4545,100) = 0.3247
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cheers,
Stan H.
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