Question

What is the third quartile (upper quartile) of this data set?

14 18 20 21 25 32 40 44 48
Group of answer choices

20

40

44

42

Answer 1

There are 9 values, so the median is the 5th value (25). Excluding the median, the upper half is 32, 40, 44, 48. The median of that half is (40 + 44)/2 = 42.

Answer: 42.