Match List-I with List-II
| List-I (Measure) | List-II (Usual symbol) | ||
| (A) | Population mean | (I) | \(s\) |
| (B) | Sample mean | (II) | \(\mu\) |
| (C) | Population standard deviation | (III) | \(\sigma\) |
| (D) | Sample standard deviation | (IV) | \(\bar{x}\) |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
Parameters (measures of the population) are generally written with Greek letters, and statistics (measures of a sample) with English letters.
(A) Population mean
This matches (II) \(\mu\): the Greek letter mu is used for the mean of the population.
(B) Sample mean
This matches (IV) \(\bar{x}\): the mean of the sample is written x-bar.
(C) Population standard deviation
This matches (III) \(\sigma\): the Greek letter sigma is used for the standard deviation of the population.
(D) Sample standard deviation
This matches (I) \(s\): the English letter s is used for the standard deviation of the sample.