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.
kale. Brassica oleracea is a form of cabbage whose leaf colors range from light green through green, dark green and violet-green to violet-brown and the central leaves do not form a head. One may differentiate between varieties according to the low, intermediate, or high length of the stem.