By Richard A. DeFusco, Dennis W. McLeavey, Jerald E. Pinto
Publish 12 months note: First released January 1st 2007
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In Quantitative funding research Workbook, Second Edition, monetary specialists Richard DeFusco, Dennis McLeavey, Jerald Pinto, and David Runkle give you a wealth of sensible details and routines that might additional improve your realizing of this self-discipline.
This crucial learn guide--which parallels the most booklet bankruptcy by way of chapter--contains hard difficulties and an entire set of options in addition to concise studying end result statements and precis overviews.
Read or Download Quantitative Investment Analysis Workbook (2nd Edition) (CFA Institute Investment Series) PDF
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Additional info for Quantitative Investment Analysis Workbook (2nd Edition) (CFA Institute Investment Series)
Example text
When two random variables are independent, the joint probability function is the product of the individual probability functions of the random variables. Bayes’ formula is a method for updating probabilities based on new information. Bayes’ formula is expressed as follows: Updated probability of event given the new information = [(Probability of the new information given event)/(Unconditional probability of the new information)] × Prior probability of event. The multiplication rule of counting says, for example, that if the first step in a process can be done in 10 ways, the second step, given the first, can be done in 5 ways, and the third step, given the first two, can be done in 7 ways, then the steps can be carried out in (10)(5)(7) = 350 ways.
What is the expected value of sales for the fourth quarter? B. What is the probability that fourth-quarter sales will be less than or equal to ¤14, 125, 000? 8. State the approximate probability that a normal random variable will fall within the following intervals: A. Mean plus or minus one standard deviation B. Mean plus or minus two standard deviations C. Mean plus or minus three standard deviations 9. You are evaluating a diversified equity portfolio. 86 percent. A. Calculate a one standard deviation confidence interval for the return on this portfolio.
The F -statistic is defined by the numerator and denominator degrees of freedom. The numerator degrees of freedom (number of observations in the sample minus 1) is the divisor used in calculating the sample variance in the numerator. The denominator degrees of freedom (number of observations in the sample minus 1) is the divisor used in calculating the sample variance in the denominator. In forming an F -test, a convention is to use the larger of the two ratios, s12 /s22 or s22 /s12 , as the actual test statistic.
