The following statistics have been calculated for trait X and trait Y: covariance between X and Y = 1,000 cmkg variance of X = 400 cm2 variance of Y = 2,500 kg2 standard deviation of X = 20 cm standard deviation of Y = 50 kg mean of X = 100 cm mean of Y = 200 kg Explain the meaning of the regression coefficient for the regression of Y on X. The following statistics have been calculated for trait X and trait Y: covariance between X and Y = 1,000 cmkg variance of X = 400 cm2 variance of Y = 2,500 kg2 standard deviation of X = 20 cm standard deviation of Y = 50 kg mean of X = 100 cm mean of Y = 200 kg Explain the meaning of the regression coefficient for the regression of Y on X. As Y increases by 1 kg, X increases by 20 cm. As X increases by 1 cm, Y increases by 50 kg. As X increases by 1 cm, Y increases by 2.50 kg. As Y increases by 1 kg, X increases by 0.40 cm