SOLUTION: grades on midterm exam given with mean 75 and std dev 9.F grade is all scores below 60th percentile of distribution.find the lowest acceptable score.
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Question 325462: grades on midterm exam given with mean 75 and std dev 9.F grade is all scores below 60th percentile of distribution.find the lowest acceptable score. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! grades on midterm exam given with mean 75 and std dev 9.
F grade is all scores below 60th percentile of distribution.
find the lowest acceptable score.
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Find the z-value that has a 0.60 left tail:
invNorm(0.6) = 0.2533
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Use x = zs+u to find the corresponding exam score:
x = 0.2533*9+75 = 77.28
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Cheers,
Stan H.
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