单选题 An analyst developed the following data on Stock X and the market: Return on the market =0.1200
Covariance between the return on Stock X and the return on the market = 0.0288
Correlation coefficient between the return on Stock X and the return on the market = 0.8000
Standard deviation of the returns on Stock X = 0.1800
Standard deviation of the returns on the market = 0.2000
Based on the data above, the beta of Stock X is:
  • A. 0.144.
  • B. 0.720.
  • C. 0.800.
【正确答案】 B
【答案解析】[*] Beta can be computed using any of these relationships and you are provided with enough information to use any of them.