Question

What are the real limits of the observation of 220 pounds?

a. may be anywhere in the range of 219 to 221 pounds
b. may be anywhere in the range of 219.5 to 220.5 pounds
c. 221 pounds
d. may be anywhere in the range of 219.95 to 220.05 pounds

Answer 1

The real limits of the observation of 220 pounds may be anywhere in the range of 219 to 221 pounds.

Step-by-step explanation:

The real limits of the observation of 220 pounds can be determined by considering the just-noticeable difference in weight. A difference between 1 and 2 units of weight is more likely detectable than a difference between 20 and 21 units. Therefore, the real limits of the observation of 220 pounds may be anywhere in the range of 219 to 221 pounds.