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Variances and Covariances

Variances and covariances are obtained by checking the "Covariance Matrix" button. For the Height-Weight data we have
Rweb:> var(variables)  
         Height    Weight 
Height  8.00000  51.22222 
Weight 51.22222 538.48889
The variances are the diagonal elements and the covariances are the off-diagonal elements. In this case the variance of "Height" is 8 and the variance of "Weight" is 538.48889. The covariance between "Height" and "Weight" is 51.22222.