how to do

New Threads were due Mon 10/5/20, 11:59 pm. Replies due Fri 10/16/20, 11:59 pm.

Plan:

1. Answer the following critical thinking questions in this forum. Feel free to copy the questions and paste into your reply so that you cover each one. Use complete sentences and proper statistical terminology in all posts.

2. Read the instructors response to the questions.

3. Read the answers of some of your peers.

4. Reply to your own post with any corrections.

[Minimum length of responses is given in brackets as number of complete sentences required]

Critical Thinking Questions

1. What is the sum of all frequencies in a frequency distribution? (Hint it is not 1) [1]

2. Why is the sum of all relative frequencies equal to 1? [1]

3. What is the relationship between percentiles and quartiles? Interpret Q1, Q2, & Q3 as percentiles. (Hint: A number

4. x

5. x

6. is at the

7. k

8. t

9. h

10. kth

11. percentile if

12. k

13. %

14. k%

15. of the data in the set is less than or equal to

16. x

17. x

18. .) [3]

19. What can you say about a data set when the “box” in the box plot is very wide but the “whiskers” do not go out very far from the box? [2]

20. Why is it important to identify outliers? [2]