问题如下：
Calculate the stock's beta, given the covariance of the market's returns with a stock's returns is 0.0035 and the standard deviation of the market's returns is 0.05.
选项：
A.
1.0.
B.
1.2.
C.
1.4.
解释：
C is correct.
Beta = covariance / market variance
Market variance = 0.052 = 0.0025
Beta= 0.0035 / 0.0025 = 1.4
这个题忘记计算的公式了。
