binsim <- rbinom(10000, 20, 0.3) Xstar <- (binsim - np) / sqrt(npq) hist(Xstar)
Now I want to add a standard normal distribution curve on my histogram. How to do that?
x <- seq(-4., 4., by = .01) y <- dnorm(x, mean = 0, sd = 1) plot(x,y, col="blue")
but I need this standard normal curve being superimposed on my original histogram.
See: Adding a "Normal Distribution" Curve to a Histogramm (Counts) with ggplot2
Okay, now I figure it out. I use par
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