First Blank: 17 or 13 or 14 or 16 or 15 or 18

Second Blank: Variable 1 or Variable 2

3rd: population or sample

4th: 3.02 or 4.94 or 3.69 or 5.17 or 5.38

5th: 2.51 or 2.78 or 1.92 or 1.49 or 2.32

6th: .61 or .21 or ,07 or .42 or .55

The most common measures of dispersion are the variance and the standard deviation. These two measures indicate how data are scattered about the mean. However, the unit of variance is the square of the units being observed, which makes it an impractical measure to interpret. For example, distance measured in meters are analyzed, the variance is measured in meters squared. As a result, you would generally choose to calculate the Standard deviation because it represents the average distance each observation is from the mean. and represent variance and standard deviation population parameters, while s' and sprosent sample statistics Sample Variance and Standard Deviation For a sample with nations, ince and standard deviation are calculated as follows: Another stock has had the following return over the last five years 8 13 17 20 22 The mean and Calculating variance and standard deviation, you get the following: 1 - 18 1912 + (131992+ (17 10 + (2018)2+(22_10/65 1) - 120 / 4-315 5- (31.5)-5.01 Population Standard Deviation If your data represent a population, the variance and standard deviation are calculated slightly differently -' In a population standard deviation, you divide by the number of observations (N), N-1. Coefficient of Variation The coefficient of variation standardizes variables dispersion (standard deviation relative to its mean. Imagine two variables, each with a standard deviation of 20. If Variable 1 has a mean of 100 and Variable 2 has a mean of 10, it is obvious that has more relative uncertainty The coefficient of variation, the amount of risk par unit of the mean, is found by dividing the standard deviation by the mean, as follows: CV - Standard Deviation / Mean Check Your Understanding A vaide's lefficiency is being tasted. Fourtraks yielded the following fu affic (ismis per gallon) 24.8 25.3 29.1 25.4 The manual city is 25.4 miles par galon. The data from this ulticancy testresa The variance of the best results is and the standard deviation is The officient of variation for the fullcancy