Which of these statements on variation is INCORRECT?
Suppose rxy is the correlation coefficient between two variables X and Y where s.d.(X) = s.d.(Y). If θ is the angle between the two regression lines of Y on X and X on Y then :
The data taken from the publication "sankhya" will be considered as :
An ANOVA procedure is used for data obtained from five populations. Five samples were taken from the 5 populations each comprising of 20 observations. The degree of freedom associated with F is :
If a data set contains n paired values on two variables x(independent) and y(dependent), then their plot is called :
In the analysis of twoway classified data if p and q are the number of levels of the two factors then an unbiased estimator for the error variance is given by