document.write( "Question 1075236: At one university, the students are given z-scores at the end of the semester rather than the traditional GPA's. A student who received a Z score of 2.0 actually had a GPA score of 3.7. Given the standard deviation of all GPA's was 0.5, what was the mean GPA? \n" ); document.write( "
Algebra.Com's Answer #689924 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! z score of 2 means (x-mean)/sd=2 \n" ); document.write( "(3.7-mean)=2*sd=1 \n" ); document.write( "so 3.7-mean=1 \n" ); document.write( "The mean is GPA score of 2.7 \n" ); document.write( " |