Last week Sarah had exams in Math,Spanish and English.On the Math exam,the mean was µ = 40 with σ = 5 and Sarah had a score of X = 45.On the Spanish exam,the mean was µ = 60 with s = 8 and Sarah had a score of X = 68.On the English exam,the mean was µ = 70 with s = 8 and Sarah had a score of X = 78.For which class should Sara expect the better grade?
A)Math
B)Spanish
C)English
D)Grades are the same.

Question

Last week Sarah had exams in Math,Spanish and English.On the Math exam,the mean was µ = 40 with σ = 5 and Sarah had a score of X = 45.On the Spanish exam,the mean was µ = 60 with s = 8 and Sarah had a score of X = 68.On the English exam,the mean was µ = 70 with s = 8 and Sarah had a score of X = 78.For which class should Sara expect the better grade?​
A)​Math
B)​Spanish
C)​English
D)​Grades are the same.

Quizplus · Accepted Answer

The Answer of Last week Sarah had exams in Math,Spanish and English.On the Math exam,the mean was µ = 40 with σ = 5 and Sarah had a score of X = 45.On the Spanish exam,the mean was µ = 60 with s = 8 and Sarah had a score of X = 68.On the English exam,the mean was µ = 70 with s = 8 and Sarah had a score of X = 78.For which class should Sara expect the better grade?​
A)​Math
B)​Spanish
C)​English
D)​Grades are the same.

Last Week Sarah Had Exams in Math,Spanish and English