Mean and variance of random variable for dealers profit
Zero-Mean Gaussian Random Variable
July 9, 2019Expected Values – Barron Big Money Poll
July 9, 2019Dealers profit is a random variable, x, having the probabilitydensity shown below.
f(x) = 2(1 – x) 0 < x < 1
0 elsewhere
a) Find the meanof x
b) Find the varianceof x
(a) Mean = Integral [from x = 0 to x = 1] of x f(x) dx
= Integral [from x = 0 to x = 1] of 2x(1 – x) dx
= Integral [from x = 0 …
Provides steps necessary to find mean and variance.
