Math 366 Exam One Review Questions

1. What is the definition of the average of a list of numbers?

    

2. What is the definition of the median of a list of numbers?

    

3. What variables do we use to summarize a box plot?

    

   The next 14 questions refer to the following situation. A researcher at a university has gathered a random sample of heights of 15 college students
   67 60 65 70 69 74 69 68 63 59 68 67 73 66 63
   average = 67; population standard deviation = 4.1

    

4. What is the mode of the list of data?

    

5. What are the quartiles?

    

6. What is the IQR?

    

7. What is the midrange?

    

8. What is the midhinge?

    

9. What is the range?

    

10. What is the variance?

     

11. Convert 70 inches into standard units.

     

12. What is the coefficent of variation?

     

13. If the data is from a normal distribution, what is the range of the middle 68 percent of the data?

     

14. What is the probability of students who are taller than 66 inches?

     

15. What is the MAD?

     

16. What is the AAD?

     

17. Construct a boxplot using the five number summary.

     

     

    The next four questions refer to the following situation. Given the following pairs of numbers.
    Table 1
    1   1
    2   3
    3   5
    4   7
    5   9
    6   11

     

18. What is the average of the x variables?

     

19. What is the average of the y variables?

     

20. What is the standard deviation of the x variables?

     

21. What is the standard deviation of the y variables?

     

22. What is the correlation coefficient?

     

23. What is the Simpson's paradox?

     

    What is the root mean square of the list of y variables?

     

    What is the variance of the list of list of y variables?

     

    What is the median of the list of y variables?

     

Answers: