An Index of the Amount of Variability That Exists in a Distribution

question 53

Multiple Choice

An index of the amount of variability that exists in a distribution of scores is the

• A) central tendency.
• B) standard deviation.
• C) frequency distribution.
• D) correlation coefficient.

---

Definitions:

Resamples

The act of drawing repeated samples from a larger dataset, often used in bootstrapping and other statistical methods to estimate the precision of sample statistics.

Measurements

The act or process of quantifying physical properties, dimensions, quantities, or capacities using standard units.

Bootstrap Confidence Interval

A statistical method for estimating the range within which a population parameter is likely to lie, based on resampling the original data with replacement.

Average Grade

The mean score of a group of grades, calculated by adding all the grades and then dividing by the number of grades.