A measurable characteristic of a sample is known as :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Statistic
A measurable characteristic of a sample (such as the sample mean \( \bar{x} \)) is a statistic; the corresponding characteristic of the population (such as \( \mu \)) is a parameter.
Why the other options are incorrect
Option (1) Parameter — Incorrect. A parameter describes the population, not the sample.
Option (3) Hypothesis — Incorrect. A hypothesis is a statement about a population that is to be tested, not a measured characteristic.
Option (4) Margin of error — Incorrect. The margin of error measures how far an estimate may be from the parameter; it is not the characteristic itself.
CBSE Applied Mathematics (Class XII):
Parameter and Statistics
