Question
calculate the third quartile, Q3 for the following data 39, 9, 27, 40, 10, 11, 36,...
calculate the third quartile, Q3 for the following data
39, 9, 27, 40, 10, 11, 36, 42, 11, 8, 18
a) 22.818
b) 8
c) 39
d) 42
e) 18
- I'm doing 3(11+1/4) and keep getting 9 but that's not an answer choice.
Homework Answers
Answer #1
Let me help you with this.
The first task is to put the data into ascending order, as shown in the table below
| Position | X (Asc. Order) |
| 1 | 8 |
| 2 | 9 |
| 3 | 10 |
| 4 | 11 |
| 5 | 11 |
| 6 | 18 |
| 7 | 27 |
| 8 | 36 |
| 9 | 39 |
| 10 | 40 |
| 11 | 42 |
For Q3 we have to compute the following position:
Since 9 is an integer number, Q3 is computed by locating the value that is 9th position in the table with data in ascending order, which means that in this case
OPTION C
You were calculating the position, not the quartile.
Hopefully, this clears things up!
If satisfied, please
do upvote! Let me know in the comments if anything is unclear. I
will reply ASAP
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