Which one of the following statement is not correct? |
Sample is a collection of some elements of population having same characteristic. The measurable characteristic of sample is called statistic. A survey done using a sample of the population has no margin of error. The sample makes inference about the population. |
A survey done using a sample of the population has no margin of error. |
The correct answer is Option (3) → A survey done using a sample of the population has no margin of error. ** The incorrect statement is: A survey done using a sample of the population has no margin of error. Every sample-based survey always has a margin of error. |