This symbol represents a random variable for the inputs of a problem.
This symbol represents a random variable for the inputs of a problem. The inputs \( \htmlClass{sdt-0000000103}{u} \) are sampled from this variable.
The symbol \(U\) represents a random variable for the inputs of a problem. A random variable is a variable whose value is a numerical outcome of a random phenomenon. The inputs \( \htmlClass{sdt-0000000103}{u} \) to a model \( \htmlClass{sdt-0000000084}{h} \) are sampled from a probability distribution associated with \(U\).