a> <a href="#math/quantile-sorted">math/quantile-sorted</a> <a href="#math/quickselect">math/quickselect</a> <a href="#math/relative-err">math/relative-err</a> <a href="#math/root-mean-square">math/root-mean-square</a> <a href="#math/rows">math/rows</a> <a href="#math/sample-correlation">math/sample-correlation</a> <a href="#math/sample-covariance">math/sample-covariance</a> <a href="#math/sample-skewness">math/sample-skewness</a> <a href="#math/sample-standard-deviation">math/sample-standard-deviation</a> 