How to calculate the correlation coefficient between the return from asset K and the return from the market?
a) Use the formula: Correlation coefficient = Covariance (K, Market) / (Standard deviation of K * Standard deviation of Market)
b) Use the formula: Correlation coefficient = Covariance (Market, K) / (Standard deviation of Market * Standard deviation of K)
c) Use the formula: Correlation coefficient = Standard deviation of K / Standard deviation of Market
d) Use the formula: Correlation coefficient = Variance (K) / Variance (Market)