The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. A random sample of the price of 10 computers was taken with the following results;
$3,250, $1,127, $2,995, $3,250, $3,445, $3,449, $1,482, $6,120, $3,009, $4,000

-What is the third quartile?
A)$1,446.5
B)$2,617
C)$3,415.75
D)$3,449
E)$4,212

Question

The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. A random sample of the price of 10 computers was taken with the following results;
$3,250, $1,127, $2,995, $3,250, $3,445, $3,449, $1,482, $6,120, $3,009, $4,000

-What is the third quartile?
A)$1,446.5
B)$2,617
C)$3,415.75
D)$3,449
E)$4,212

Quizplus · Accepted Answer

The third quartile (Q3) is the median of the upper half of the data set. When the data is ordered: $1,127, $1,482, $2,995, $3,009, $3,250, $3,250, $3,445, $3,449, $4,000, $6,120, the upper half is $3,250, $3,445, $3,449, $4,000, $6,120. The median of this set is $3,449.

The Company Financial Officer Was Interested in the Average Cost