
Mark M. answered 11/18/18
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Mathematics Teacher - NCLB Highly Qualified
105 - 80 = 25
That is 1 s.d. above the mean.
Use the rule
Nini U.
asked 11/18/18Assumes that a set of test score is normally distributed with a mean of 80 and a standard deviation of 25,use the 68-95–99.7 rule to find the following quantity:The percentage of scores greater than 105
Mark M. answered 11/18/18
Mathematics Teacher - NCLB Highly Qualified
105 - 80 = 25
That is 1 s.d. above the mean.
Use the rule
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