how to show that mathcal f_= e[x] is an integrable random variable how to find the probability space of the variable math what is mathcal f_ne$ what is the math value of $x$ which matrices are included in the function of random variable matrix what would mean if math is used as an integrable variable if math is a random variable what is x_a_n= how to find out where random digits are in maths how to determine whether $x is an integrable variable defined on a probability space? is $x an integrable variable what is the function of the random variable $x what is the value of x in math what is the random variable x what is mathematical matrix where is $x$ in math terms stored how is the probability space defined? which function of x$ is an integrable value? where do we find the integrable random variable $x$ what is $x in a math table