Expected value of a random variable
Statistical Calculations for Initiation into the Cardinal Club
July 9, 2019Descriptive Statistics
July 9, 20193. Let X be a discrete random variablewith Pr {X = i} = ci for positive, even integers i <= 12; otherwise, the probabilityis zero, (a) Compute the value of c. (b) What is the meanof X? (c) What is the second moment of X? (d) What is the varianceof X? (e) Compute E[(X ? 5)+] where x+ is defined to be max(x,0).
Discrete random variable and Expected value.
