Calculating the expectation : Introductory video

Before watching the video read the questions below. As you watch the video try to answer them

Questions

    • How is the expectation of a discrete random variable calculated?
    • How is the expectation of a continous random variable calculated?
    • What do we mean by the $n$th moment of the random variable $X$?
    • What do we mean by the $n$th central moment of the random variable $X$?
    • How is the variance of a random variable calculated?
    • Complete the following sentence "the ? is the ? moment of the distribution"
    • How is the moment generating function computed?
    • How do you calculate the $n$th moment of the distribution from the moment generating function?