1. During the course of a semester, 10 students in Mr. Smith's class took three exams at different points of time in the semester. Use MicrosoftExcelto compute all the descriptive statistics for the following set of three test scores over the course of a semester. Be sure to show your Excel output and answer the questions below:

1. Which test had the highest average score?
2. Which test had the smallest amount of variability?
3. How would you interpret the differences between exams,and notethe range, means, and standard deviations over time?

Test1	Test2	Test3
90	94	95
65	75	90
51	77	91
88	84	93
72	88	92
75	84	90
60	75	83
78	85	90
80	80	92
84	88	94