I have read the documentation on qnorm()
but could not really understand what it does. Can you please answer in detail what qnorm()
does?
note-Please excuse me for asking such a simple question. I am a beginner at R.
The function qnorm()
aims to find the boundary value, A in P(X < A)
, given the probability P.
For example, suppose you want to find the 85th percentile of a normal distribution whose mean is 70 and whose standard deviation is 3. Then you ask for:
qnorm(0.85,mean=70,sd=3)
[1] 73.1093
From https://cran.r-project.org/web/packages/tigerstats/vignettes/qnorm.html
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