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Home Q & A Board Science-Related Homework Help Mathematics
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gracehiller11 gracehiller11
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6 years ago
Grades for a statistics exam for a certain class follow the normal probability distribution with a mean of 82 and a standard deviation of 12 . What percentage of the students in the class earned a B grade (80-89)?
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tiss9889tiss9889
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6 years ago
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gracehiller11 Author
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6 years ago
Thank you, thank you, thank you!
yen
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Yesterday
Thanks
kamikazekota
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2 hours ago
Smart ... Thanks!
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