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Chapter 2: Q.2.35 (page 119)

Two students, John and Ali, from different high schools, wanted to find out who had the highest GPA when compared to his school. Which student had the highest GPA when compared to his school?

Short Answer

Expert verified

John has the better GPA as compared to Ali in his school.

Step by step solution

01

Content Introduction

For both students determine the standard deviations his GPA is away from the average of his school.

sxofGPA=value-meanstandarddeviationsx=x-渭未

02

Content Explanation

For John, standard deviation is

sx=x-渭未sx=2.85-3.00.7sx=-0.21

For Ali, standard deviation

sx=x-渭未sx=77.8010sx=-0.3

03

Conclusion

John's score of -0.21is higher than Ali's score -0.3.For GPA higher values are better, so we conclude that John's GPA is better.

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