Quality control is an important issue at ACME Company which manufacturers light bulbs. In order to conduct testing of the life hours of their light bulbs, they randomly sampled nine light bulbs and measured how many hours they lasted (mean = 346.6).
378, 361, 350, 375, 200, 391, 375, 368, 321

-What is the range?
A)342.43
B)3424.3
C)58.5
D)191
E)10609

Question

Quality control is an important issue at ACME Company which manufacturers light bulbs. In order to conduct testing of the life hours of their light bulbs, they randomly sampled nine light bulbs and measured how many hours they lasted (mean = 346.6).
378, 361, 350, 375, 200, 391, 375, 368, 321

-What is the range?
A)342.43
B)3424.3
C)58.5
D)191
E)10609

Quizplus · Accepted Answer

Range is the difference between the highest and lowest values in a set of data. Since only one number is given in the answer choices, we cannot determine the range. Therefore, the best choice is D, which is just a number without any context or indication of it being a range.

Quality Control Is an Important Issue at ACME Company Which