is the number that describes some characteristic of the population. 2. : the value of a statistic varies in repeated random sampling 3. The distribution of values taken by the statistic in all possible samples of the same size from the same population is known as the 4. p is an of p 5. describes the spread of a sampling distribution 6. A statistic used to estimate a parameter is an if the mean of its sampling distribution is equal to the value of the parameter being estimated. 7. The shows the values of the variable for the individuals in the sample