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z_score [2017/03/24 08:49] – created hkimscilz_score [2018/09/18 08:03] hkimscil
Line 4: Line 4:
 \displaystyle z = \frac {X - \mu} {\sigma}} \displaystyle z = \frac {X - \mu} {\sigma}}
 \end{equation}   \end{equation}  
 +
 +{{youtube>NY2zWGBXBhU}}
 +
 +in R
 +<code>pnorm(1) - pnorm(-1)</code> 혹은 percentage로는
 +<code>round(100* (pnorm(1) - pnorm(-1))) </code>
 +
 +<code>round(100* (pnorm(2) - pnorm(-2))) 
 +round(100* (pnorm(1.96) - pnorm(-1.96))) 
 +</code>
 +
 +
z_score.txt · Last modified: 2023/09/18 08:52 by hkimscil

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