The properties of point estimators A point estimator is a sample statistic that provides a point estimate of a population parameter. Complete the following statements about point estimators. A point estimator is said to be if its is equal to the value of the population parameter that it estimates. A point estimator is said to be if, as the sample size is increased, the estimator tends to provide estimates of the population parameter. Given two unbiased estimators of the same population parameter, the estimator with the is .