A random variable X is a function. So is probability P. Recall that the domain of a function is the set of values its argument may take on while its range is the set of corresponding values of the function. In terms of sets, events, and sample spaces, state the domain and range for X and P. | Numerade

let x be a random variable with pdf cx 3 x 0 fx cx 0 x 3 0 otherwise where c is a constant find the variance of x write it up to first decimal place 49619

Random Variable: Definition, Types, How It’s Used, and Example