what is the difference between a fixed score and random score which statistic relates to the proportion of variance explained by a fixed-score sample? what is the relationship between fixed and random score what is the population r square which of these terms describes the proportion of variance explained in the outcome of the population of a sample how to figure population r square what is the r squared population estimate what is the measure of variability explained in the outcome of the population regression? why does adjusted r square include a variable can lr be adjusted to estimate a fixed score what is the measure of variance of rho which statement best defines the proportion of variance explained by a population regression equation? which variable is the dependent variable in a multiple regression model? what is rho2 in regression analysis r-square population estimate definition why is the r-scalar of a linear regression calculated as the proportion of variance? how to use an adjusted r square to find fixed score in population what is the difference in r square of fixed score and random score when the predictor is held constant in statistics the proportion of variance is explained in the why would a random sample have to be fixed to estimate the variable variance?