Question

What is the third quartile of this data set?

21, 24, 25, 28, 29, 35, 37, 39, 42
A. 38
B. 25
C. 29
D. 24.5

Answer 1

What is the median?

Answer 2

29 ? @tkhunny

Answer 3

Good. Now, ignore everything below 29 and answer the same question. What is the median?

Answer 4

37?

Answer 5

You just found the third quartile - the median of everything from the median, up.

Answer 6

But there is no 37 so would it be 38 ?

Answer 7

Whats the definition of a quartile?

Answer 8

Personally, I disagree with anything by 37. If you have a working definition that suggests it should be something other than that, please use that definition so you get it right on your exam.