A soft-drink bottling company fills and ships soda in plastic bottles with a target volume of 354 milliliters. The filling machinery does not deliver a perfectly consistent volume of liquid to each Bottle, and the three quartiles for the fill volume are $Q _ { 1 } = 351 , Q _ { 2 } = 357 , \text { and } Q _ { 3 } = 360$ Find the IQR.
A) 13.5
B) 10.8
C) 3
D) 9

Question

Quizplus · Accepted Answer

The IQR is the difference between the third quartile and the first quartile, which is given by
$$Q_3-Q_1 = 360 - 351 = 9$$
Hence, the best choice is $\boxed{	extbf{(D)}}$.

A Soft-Drink Bottling Company Fills and Ships Soda in Plastic Q1=351,Q2=357, and Q3=360Q _ { 1 } = 351 , Q _ { 2 } = 357 , \text { and } Q _ { 3 } = 360Q1​=351,Q2​=357, and Q3​=360

A Soft-Drink Bottling Company Fills and Ships Soda in Plastic $Q _ { 1 } = 351 , Q _ { 2 } = 357 , \text { and } Q _ { 3 } = 360$