Unizor is a site where students can learn the high school math (and in the future some other subjects) in a thorough and rigorous way. It allows parents to enroll their children in educational programs and to control the learning process.
Saturday, September 27, 2014
Unizor - Probability - Random Variables - Problem 1
Calculate expected value E(ξ), variance Var(ξ) and standard deviation σ(ξ) of a random variable ξ formed by a sum of numbers on the top of two perfect dice rolled together.