Explanation
Correct answer: B.
Choice B is correct. Range is defined as the difference between the greatest and least values from a set of data. The greatest number of wheels made during a one-hour period was wheels. The least number of wheels was . Hence, the range is , or .
Desmos solution:
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice A
Choice A is incorrect and may result from calculating the mean of the range boundaries: (24 + 19)/2 = 21.5, then subtracting the minimum: 21.5 - 19 = 2.5, or doubling this to get 5.5, or from other computational errors.
Choice C
Choice C is incorrect and may result from using 23 (the second-largest value) instead of 24 as the maximum: 23 - 19 = 4, then adding 0.5 due to a calculation error, or from confusing the range with another measure.
Choice D
Choice D is incorrect and may result from using 23 instead of 24 as the maximum value: 23 - 19 = 4.0.