A1. Methods for Approximating Variances and Covariances

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The Delta Method
Variance of variances and covariances
Variance of Products and Ratios
- Variance of a product
- Variance of a ratio
- Sampling variance of a regression coefficient
- Sampling variance of a coefficient of variation

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Created 12 May 1995, last updated 28 March 1996

Bruce Walsh. jbwalsh@u.arizona.edu . Comments welcome.

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