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.
A GREEN-fingered Brit has planted himself in the Guinness World Records book with the largest ever onion. Tony Glover has smashed the existing record for his whopping vegetable, which weighs an eye-watering 18lbs and 11oz and measures 32 inches around its widest part. When recipes call for a large onion, on average they mean around 12 ounces.