check that $p(t)=\lambda e^{-\lambda t}$ is a density function
123840
How do I tell if this function is a probability density function?
78733
Finding the density for $\min\{X, Y\}$
147322
Does the square of uniform distribution have density function?
121360
How to calculate overlap between empirical probability densities?
30223
Given an exact formula, how can Mathematica find a probability distribution whose PDF matches it?
71794
Compute the mean of $(1 + X)^{-1}$ where $X$ is Poisson$(\lambda)$
33054
Given a joint density function, what is the conditional expectation $E[Y|x]$?
124728
Density of random variables
119481
Show t-distribution is close to normal distribution when df is large
75645
Proof of $\frac{Y^{\lambda}-\lambda}{\sqrt{\lambda}}\to Z\sim N(0,1)$ in distribution as $\lambda\to\infty$?
98710
Finding $\int_0^{\infty}xe^{-\lambda x} \, dx$
84185
density of $X^2$ when $X$ has uniform $[-1, 2]$ distribution
83279
How can I find such a $z$? (Injectivity of $T(z) = \lambda z + \mu\bar{z}$)
21649
P.d.f of the absolute value of a normally distributed variable
120889
How is $\frac{dQ}{T}$ measure of randomness of system?
131931
Derivation of the density function of student t-distribution from this big integral.
86635
Optimizing $(X_{n}+c)^{2}$ to show that $P(\overline{X}_{n}\geq \lambda) \leq E(X_{n}^{2})/(EX_{n}^{2}+ \lambda^{2})$