How can I calculate probability from the log-normal distribution probability density function graph in python?

Question

How can I find probability between certain values from the lognormal distribution probability density function with Python? Thank you.

score -1 · Answer 1 · answered May 10 '21 at 14:44

-1

I would suggest using Scipy to calculate these kind of probability functions. Example of what you asked:

import scipy.stats as stats

print(stats.lognorm(1.).cdf(.7)-stats.lognorm(1.).cdf(.5))

answered May 10 '21 at 14:44

Thank you so much and can I ask something too, this code is works and for example I wonder of probabiliy on the probability denstiy function between 150-200 values, so this code is how should be? I'm new on this subject, I'm sorry if I asked the wrong thing please – tuba May 10 '21 at 15:02
You would have to calculate stats.lognorm(1.).cdf(200)-stats.lognorm(1.).cdf(150). But this is for the lognormal distribution with sigma=1 and mu=0, if you want the result for a lognormal distribution with other parameters, you will have to change the (1.) and do some translation. – DwightFromTheOffice May 11 '21 at 06:44

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