Measures of Position
... of standard deviations a data value falls above or below the mean. Symbol for standard score is z. • Positive z score is above the mean, negative is below the mean, and 0 is same score as the mean. • Obtained by taking a data value – mean then dividing by the standard deviation. ...
... of standard deviations a data value falls above or below the mean. Symbol for standard score is z. • Positive z score is above the mean, negative is below the mean, and 0 is same score as the mean. • Obtained by taking a data value – mean then dividing by the standard deviation. ...
Central Tendency and Dispersion Univariate Data
... First place your scores from smallest to biggest. The median is the middle score. If two middle scores exist (i.e. when n is an even number) then find the average of these two. If n is a large number, the easiest way to find the median is to add 1 to the number of scores (n) and then divide by 2. If ...
... First place your scores from smallest to biggest. The median is the middle score. If two middle scores exist (i.e. when n is an even number) then find the average of these two. If n is a large number, the easiest way to find the median is to add 1 to the number of scores (n) and then divide by 2. If ...
Name - RPDP
... 2) The accompanying table shows the percent of the adult population that married before age 25 in several different years. Using the year as the independent variable, find the linear regression equation. Round the regression coefficients to the nearest hundredth. ...
... 2) The accompanying table shows the percent of the adult population that married before age 25 in several different years. Using the year as the independent variable, find the linear regression equation. Round the regression coefficients to the nearest hundredth. ...
Central tendency, dispersion
... Ask "by what constant factor would your investment need to be multiplied by each year in order to achieve the same effect as multiplying by 1.10 one year, 1.50 the next, and 1.30 the third?" The answer is the geometric mean ...
... Ask "by what constant factor would your investment need to be multiplied by each year in order to achieve the same effect as multiplying by 1.10 one year, 1.50 the next, and 1.30 the third?" The answer is the geometric mean ...
Inferential Statistics 3
... • You have no way of knowing if you are one of the 95% ‘lucky ones’ or the 5% ‘unlucky ones’ when you have drawn one sample and computed a confidence interval. • All you can say is that you have used a high quality method to construct the interval. ...
... • You have no way of knowing if you are one of the 95% ‘lucky ones’ or the 5% ‘unlucky ones’ when you have drawn one sample and computed a confidence interval. • All you can say is that you have used a high quality method to construct the interval. ...
Types of data and how to present them - 47-269-203-spr2010
... a normal distribution: Mean = Median = Mode a positively skewed distribution: Mode < Median < Mean a negatively skewed distribution: Mean < Median < Mode ...
... a normal distribution: Mean = Median = Mode a positively skewed distribution: Mode < Median < Mean a negatively skewed distribution: Mean < Median < Mode ...