anonymous
  • anonymous
In need of help quickly.. The grades on the last science exam had a mean of 89%. Assume the population of grades on science exams is known to be distributed normally, with a standard deviation of 14%. Approximately what percent of students earn a score between 75% and 89%?
Mathematics
katieb
  • katieb
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ivanzud
  • ivanzud
You can look at the standard deviation graph. Between 0 and 1 since 89-deviation(14)=75.
ivanzud
  • ivanzud
Between 0 and -1 i mean.

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