It is used to determine the spread of the data from the mean. Range false Variance false Distribution false Standard Deviation true Single It refers to the arithmetic average of a data set. Mode false Mean false Median true Arithmetic mean false Single Population: entire group; _______: a portion Part true Slice false Sample false Selected parts false Single A measure of ____________ is a value that describes how the numbers of a set of data are spread out or dispersed. Dispersion true Central tendency false Range false Variance false Single It is the simplest measure of dispersion. Variance false Standard Deviation false Range true Sample variance false Single In this data distribution, data are spread symmetrically about the mean, meaning that 50% of the values lie above the mean and 50% lie below. Symmetrical distribution false Normal distribution true Balanced distribution false Curved distribution false Single It is used in determining observation value. It is a measure of relative standing. Z-score true Normal distribution false Abnormal distribution false A-score false Single It is the formula for getting the Range. Sample mean false Variance false Highest Value – Lowest Value true Lowest Value – Highest Value false Single What is n in the sample variance formula? Sample mean false Variance false Number of values false Number of observations true Single In polls and surveys, it is used to measure the level of confidence in results. Range false Standard Deviation true Variance false Dispersion false Single