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.
World's biggest ever onion Photo. Peter, a 67-year-old retired chartered surveyor, who lives near Newark, has broken ten world records in his 30 years of gardening. He has been trying for the honour of cultivating the worldâs heaviest onion for 25 years but always missed out until yesterdayâs victory at Harrogate Flower Show.