The real limits of the number 20 are:
A)19.5 to 20.5
B)19 to 21
C)19.05 to 20.05
D)19.025 to 20.075

Question

Quizplus · Accepted Answer

The real limits of a number are the range within which there is a 95% chance that the true value lies. For example, if we measure the length of a table and get 20 cm, the real limits would be the range where the true length of the table is likely to be, given the margin of error in our measurement. For a sample size of one and a confidence interval of 95%, the real limits are ±0.5 units from the observed value. Therefore, the best choice is A) 19.5 to 20.5, as it represents the range within which there is a 95% chance that the true value of 20 lies. The other choices are either too wide or too narrow to capture the true value with a 95% confidence level.

The Real Limits of the Number 20 Are