Expected Value

Compute the expected value of a random variable:

expected value of |x|^3, x standard normal

X~Poisson(7.3), EV[3X^4-7]

E[x^2] where x is exponentially distributed

expectation of y^2+2y-1 for y having a gamma distribution

Probability Computations

Compute the probability of an event:

P[-1.2<X<2.3] for X~student t with 12 dof

prob x>5 for x binomial with n=14 and p=.36

x chisquare with 9 dof, prob 3x-5<7

prob X<16 for X~geometric with p=0.1

Compute a conditional probability:

probability that x^2>2 given that x>1, x~standard normal