What is 'Covariance'. Covariance is a measure of the degree to which returns on two risky assets move in tandem. A positive covariance means that asset returns move together, while a negative covariance means returns move inversely.
23 September 2016. The heaviest red cabbage weighs 23.2 kg (51.15 lb) and was grown by David Thomas (UK), as verified at the UK National Giant Vegetables Championship in Malvern, UK, on 23 September 2016. David also holds the current record for Heaviest parsnip and Heaviest cucumber.
Cow parsnip, Heracleum maximum, a plant native to North America and very common in Newfoundland, Quebec, and northern Ontario, is often misidentified as giant hogweed. A plant can be identified as giant hogweed by checking the stems, which are green with obvious purple blotches from which stiff white hairs arise.