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#41




Hi tkt,
For ADAPT, what do you think the difficulty level of practice exams that students should be comfortable with is? I'm asking this because although my earned level increased, the difficulty level of recent exams that I took dropped. I thought the difficulty level will increase as long as the earned level increases? Thanks. 
#42




Quote:
We have recently updated the exam generation algorithm and prioritize generating fewer repeat questions. The tradeoff is that section distribution and difficulty ranges may be a little off. When generating quizzes and custom exams, the algorithm focuses more on grabbing questions you have yet seen or seen less than trying to match the exam difficulty you desired. This phenomenon is more prominent or visible to users who have generated hundreds of quizzes or exams. Most of our new questions on the Corporate Finance material are in the range of level 4  6 as well. Although I couldn't tell with certainty, I still anticipate the actual IFM exam to be about Adapt level 4  6. Hope this helps! 
#43




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#44




I have a question on Practice Exam 10 question 2 in the ASM manual.
The question asks you to calculate the covariance between two stocks X,Y X Y 1 0.06 0.03 2 0.17 0.02 3 0.05 0.15 4 0.22 0.2 5 0.1 0.15 This gives xBar = .1 yBar= .11 Using the formula Cov(X,Y) = Sum((xixBar)(yiyBar))/(n1) I get Cov(X,Y) = .0017/4 = .000425 The answer key uses the formula Cov(X,Y) = (n/(n1))[sum(xi*yi)/nyBar*xBar)] = .057 Am I making a calculation error or is there a reason one has to use the Cov formula used by the answer key? The manual says they're equivalent, but I am not getting the same answer. 
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