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Among the options for parameters, which option is correct for population?

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SSC CGL Tier-II ( JSO ) 2019 Official Paper ( Held On : 17 Nov 2020 )
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  1. X̅ and μ
  2. s and σ
  3. X̅ and s
  4. μ and σ

Answer (Detailed Solution Below)

Option 4 : μ and σ
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Detailed Solution

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Explanation

Statistics such as averages and standard deviation when taken from populations are population parameters.

The population mean is denotted by μ and standard deviation denotted by σ 

∴ μ and σ are parameters for population

Mean =  ∑xi/n

Standard deviation = √(∑(xi - x̅)2/n)

 

 

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