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Which one is parameter from population?
1. \(\bar{X}\)
2. \(\sigma \)
3. S
4. p

1 Answer

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Best answer
Correct Answer - Option 2 : \(\sigma \)

Explanation:

The population mean and standard deviation are two common parameters. In statistics, Greek symbols usually represent population parameters, such as μ (meu) for the mean and σ (sigma) for the standard deviation.

 \(̅{X}\) = The sample mean formula is:

\(̅{X}\) = ( Σ xi ) / n

Population standard deviation = Standard deviation measures the spread of a data distribution. It measures the typical distance between each data point and the mean.

σ =√([Σ(x - u)2]/N)]

S = Sample standard deviation = σ =√([Σ(x - x̅ )2]/(n - 1)]

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