Hi,
I have one basic doubt. Suppose X ~ N(50,10).
I need to calculate Probability X = 50.
dnorm(50, 50, 10) gives me
[1] 0.03989423
My understanding is (which is bit statistical or may be mathematical) on a
continuous scale, Probability of the type P(X = .....) are nothing but
1/Infinity i.e. = 0. So as per my understanding P(X = 50) should be 0, but even
excel also gives 0.03989422. Obviously my understanding is wrong. If I put
value of x = 0 in the normal density function, I do get 0.03989422.
My confusion is on the continuous scale if the probability (X = x) doesn't make
sense, 0.03989423 is significant to neglect.
Please clarify
Regards
Vincy
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
