Information Matrix Filter Toggle filters Posts feed Search Keywords Filter by tags Publication date Min Max Filter by year - All - 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 Correlation complicationsA basic result in probability theory is that the variance of the sum of two random variables is not necessarily the same as the sum of their variances.25 November 2012 Written by: Stephen RichardsTags: Filter information matrix by tag: cause of death, Filter information matrix by tag: correlation, Filter information matrix by tag: covariance