what is expected from an estimator is expected a random variable are random variables iid define calculating expectation how do i calculate expectation for a random variable is $x a normal variable what is the expectation of the estimator in probability calculating expectation what is the expectation of an estimate why is it called an iid estimator? is the random variable expectation what is the meaning of expectation of data points for estimate what is the expectation of the estimator how can we explain a random variable what is the expectation of the estimator? a. the expected value of a random variable b. the expected value of a random variable c. the observed data value of a randomly generated data point d. the expected value of a random variable d. a random variable is x an iid why is an estimator an iid? what is meant by calculating expectation of the variable how to calculate the expectation of the variable what is meant by an estimator