Elastic net - Study guides, Class notes & Summaries

CFA Level 1 - 101 Must Knows 368 Questions with Verified Answers Addition Rule of Probability - CORRECT ANSWER ADDITION: P(A or B) = P(A) + P(B) - P(AB) Roy's Safety First Criterion - CORRECT ANSWER Safety First Ratio = (E(R) - Rₜ) / σ Larger ratio is better If (Rₜ) is risk free rate, then it becomes Sharpe Ratio Sharpe Ratio - CORRECT ANSWER Sharpe Ratio = (E(R) - RFR) / σ Larger ratio is better If (Rt) is higher than RFR, then it becomes Safety First Ratio Centra...

When you launch an Amazon Elastic Compute Cloud (Amazon EC2) instance, what does the instance type define? : The amount of compute for an Amazon EC2 instance, including RAM, instance storage, CPU, and network bandwidth. When you launch an Amazon Elastic Compute Cloud (Amazon EC2) instance, what is defined by the Amazon Machine Image (AMI)? : The initial software state of the instance when launched, including operating system, configuration, and additional installed programs. What is t...

Test Bank for Microeconomics, 3rd Canadian Edition 3ce by Glenn Hubbard, Anthony Patrick OBrien. Full Chapters test bank included 1 Economics: Foundations and Models Economics in Your Life and Career: How Much Will You Pay for a Cup of Coffee? Three Key Economic Ideas People Are Rational People Respond to Incentives Apply the Concept: Does Canada’s Health Care System Contribute to Obesity? Optimal Decisions Are Made at the Margin Solved Problem: 1.1 Binge Watching and Decisions at...

BSNS 113 Final Exam Revision Questions And Correct Answers. Perfect Solution For Your Exam Preparation. "Economy-wide phenomena including inflation, unemployment and economic growth" is what type of economics? Macroeconomics "The study of how house holds and firms make decisions and how they interact in markets" is what type of economics? Microeconomics What is Positive Analysis? A statement describing how something is What is Normative Analysis? A statement describing how somethin...

normative statement an opinion that cannot be confirmed by referencing facts positive statement a statement that can be proved by referencing facts why are economic models used? theories cannot be tested in a controlled environment the basic economic problem scarcity - consumer wants are always greater than available resources opportunity cost the next best alternative foregone factors of production resources used by a firm in production list and define the factors of production lab...

WGU C165 Integrated Physical Science Questions and Answers Latest Updated 2022 Physics The study of forces, energy, motion Chemistry The study of atoms and molecules, their structures, and their interactions to form substances Earth science The study of the Earth's structure and composition, and processes that change Earth essential attributes of science Studies the natural world Uses testable ideas Relies on data from observations/experiments Presented for evaluation by other scientists Lea...

ISYE 6501 - Midterm 2 Questions and Answers 100% Correct when might overfitting occur when the # of factors is close to or larger than the # of data points causing the model to potentially fit too closely to random effects Why are simple models better than complex ones less data is required; less chance of insignificant factors and easier to interpret what is forward selection we select the best new factor and see if it's good enough (R^2, AIC, or p-value) add it to our model and fit the mod...

AQA AS PHYSICS 7407/1 Paper 1 Mark scheme Latest Updated 2024 radioactive contamination - the unwanted presence of materials containing radioactive materials how much of our background radiation is from the air(radon) - 50% how much of our background radiation is medical - 14% how much of our background radiation is from the ground - 14% how much of our background radiation is from food and drink - 11.5% how much of our background radiation is cosmic - 10% how much of our ...

ISYE 6501 Final Exam Questions and Answers 100% Pass Factor Based Models classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model Why limit number of factors in a model? 2 reasons overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects simplicity: simple models are usually better Classical variable selection approaches 1. Forward selection 2. Backwards elimination 3. Stepwise reg...

MANAGEMENT ADVISORY SERVICES QUESTIONS AND ANSWERS THEORY 1. Which of the following costs should consider the tax shield effect in computing the costs of capital? A A. Cost of debt B. Cost of common stock C. Cost of preferred stock D. Cost of retained earnings 2. Which of the following is not considered in the cash conversion cycle? B A. Receivable collection period B. Debt repayment period C. Inventory conversion period D. Payable deferral period ...