2021年实行全面的机考，考试时间和考试题量都有一定程度的减少，考试难度也是增加了，那你正在备考2021年CFA考试吗？那小编给你看看CFA考试题，考试题是没有发生变化的！
1. A utility analyst performed a regression analysis relating monthly energy consumption to average monthly temperature over the last four years. Total variation of the dependent variable was 58.6 and the unexplained variation was 31.3. The coefficient of determination and standard error of the estimate, respectively, for the regression model are closest to
Coefficient of determination Standard error of the estimate
A 0.4659 0.8075
B 0.4659 0.8249
C 0.5341 0.8075
D 0.5341 0.8249
Answer: B. The coefficient of determination is explained variation divided by total variation (58.6-31.3)/58.6=0.4659. There are a total of 48 observations in the sample the standard error of the estimate is(31.3/(48-2))1/2=0.8249
2. A lognormal distribution differs from a normal distribution in that a lognormal distribution:
A. is skewed to the left
B. cannot contain negative values
C. has less complicated confidence intervals
D. is completely described by two parameters
Answer: B. The lognormal distribution is bounded on the left by zero, but a normal distribution contains negative values.
机上考试是比较难的，也是比较浪费时间的，考生需要的是加强机考的练习！
