The company financial officer was interested in the average cost of PCs that had been purchased in the past six months. She took a random sample of the price of 10 computers, 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 first quartile?
A) $1,446.50
B) $2,995.00
C) $3,415.75
D) $3,587.00
E) $4,212.00

Question

Quizplus · Accepted Answer

Place scores in ascending order and calculate the index = (p/100)n = (25/100) × 10 = 2.5. When the index is not an integer, round up to the next integer to obtain the index value: 2.5 rounds to 3; the third value is $2,995.

The Company Financial Officer Was Interested in the Average Cost